scispace - formally typeset
Search or ask a question

How have numerical methods evolved over time and what are some of the significant developments? 


Best insight from top research papers

Numerical methods have evolved significantly over time to address complex scientific and engineering problems. Initially, methods were analytical, focusing on exact solutions. With the rise of computational technology, numerical methods became crucial for approximating solutions where exact ones were unattainable. The development of parallel computing enhanced precision in simulations like turbulent flow studies. In the realm of atmospheric modeling, advancements in hardware led to more comprehensive representations of dynamic processes, necessitating new numerical approaches. These developments include mesh-based methods like finite element and finite volume methods, as well as meshless methods such as Smoothed Particle Hydrodynamics and Element Free Galerkin method. The ongoing evolution of numerical methods continues to drive progress in various fields, from fluid mechanics to climate simulation models.

Answers from top 5 papers

More filters
Papers (5)Insight
Numerical methods in atmospheric models have evolved from simplified equations on early computers to more complex representations on massively parallel computers, driving advancements in weather forecasting and climate simulation.
Numerical methods have advanced with parallel computing enhancing precision in turbulent flow simulations, and proper orthogonal decomposition reducing oil pipeline simulation time, showcasing significant progress in mechanical engineering applications.
Book ChapterDOI
01 Jan 2023
Numerical methods have evolved with advancements like finite element method, finite volume method, Smoothed Particle Hydrodynamics, Moving Least Square, Element Free Galerkin method, Reproducing Kernel Particle Method, and more.
Numerical methods for simulating foam dynamics have evolved to include surfactant distribution in bubble-scale simulations, enhancing accuracy in predicting foam rheology.
Numerical methods have advanced from analytic solutions to handle partial differential equations efficiently. Significant developments include numerical approximations, algorithms, and computational techniques for solving complex problems accurately.

Related Questions

How has the methodology of DiD evolved over time, and what significant advancements have been made?5 answersThe methodology of Difference in Differences (DiD) has not been directly addressed in the provided contexts, making it challenging to directly answer the question based on the given abstracts. However, by extrapolating from the evolution and advancements in various methodologies across different fields as described in the contexts, we can infer some general trends in methodology evolution that could also apply to DiD. The evolution of methodologies, whether in descriptive methods, software development, or scientific research, often begins with identifying shortcomings in existing methods and seeking improvements to address these gaps. For instance, in descriptive methods, the evolution has been driven by the need for more accurate and precise methods, with a caution against confirmation bias, indicating a trend towards more robust and reliable research methods over time. Similarly, the field of software development has seen a transition from empirical or artisanal approaches to more disciplined and agile methodologies, responding to the need for flexibility and efficiency in project delivery. In the realm of scientific research, the directed evolution of enzymes showcases how methodologies can evolve to achieve more refined outcomes, such as proteins with improved characteristics, by mimicking natural evolution principles in a laboratory setting. This reflects a broader trend in methodology evolution towards leveraging natural processes and advanced technologies to achieve more precise and desirable outcomes. Technological advancements have also played a crucial role in methodology evolution, as seen in the development of real-time analytics and sign language translation systems. These advancements have enabled the handling of streaming data and the bridging of communication gaps through the integration of IoT technology, respectively. Overall, while the specific evolution of DiD methodology is not detailed in the provided contexts, the general trend across various fields shows a movement towards more accurate, efficient, and technologically integrated methodologies. This evolution is driven by the need to address specific shortcomings and leverage new technologies to achieve better outcomes.
How has idiographic research evolved over time?3 answersIdiographic research has evolved over time, expanding from ethnography to include grounded theory, phenomenology, focus groups, semi-structured interviews, digital methods, and mixed and multiple methods that incorporate qualitative inquiry. There has been a shift from using perspectives of strangers to centering on the use of self as data, as seen in autoethnography, and involving participants as equal partners in research, as in community-based participatory research. Idiographic research has also seen advancements in the use of new time-series techniques to address individual differences, but caution is needed in interpreting heterogeneity due to sampling variation and power limitations. The relationship between idiographic research and the nomothetic mainstream has become more harmonious, with unique manifestation research and intraindividual research forming an essential part of psychology in the 21st century. Overall, idiographic research has evolved to encompass a range of methods and approaches, highlighting the importance of understanding individual experiences and differences in psychological research.
How did the field of computer vision evolve over time?4 answersComputer vision has evolved over time due to advancements in machine learning techniques and the integration of explicit knowledge with image data. In the past, computer vision research focused on simple tasks for constrained scenarios due to limitations in computational resources. However, in the last ten years, the use of explicit knowledge has improved computer vision tasks by enabling a joint bottom-up and top-down approach to visual learning, similar to human vision. Computer vision has moved beyond simply recording raw data and now incorporates methods and concepts from computer graphics, pattern detection, digital image processing, and machine learning. The field has also seen advancements in object detection techniques, such as the YOLO algorithm, which has applications in factory and machine monitoring. Overall, computer vision research has focused on image recognition and the analysis of photos and videos to extract information and patterns.
How did machine learning evolved?3 answersMachine learning has evolved over time. Initially, computers were designed to perform complex calculations and follow instructions without learning. The next step was to enable computers to learn from experience and extract their own rules from data, leading to the field of machine learning and artificial intelligence (AI). Major breakthroughs in machine learning algorithms, such as deep learning, which is loosely modeled on brain architecture, have revolutionized many aspects of modern life. Machine learning has found applications in various fields, including healthcare, finance, and retail, for better practices. In the field of biomedical research, machine learning has become an integral part, allowing for the exploration of genomic and beyond-genomic information. Overall, machine learning has evolved from following instructions to learning from experience and has become a powerful tool in various domains.
How did numerical reasoning cognitive test evolve over time?4 answersThe field of numerical cognition has evolved over time, influenced by various factors such as the cognitive revolution, advancements in technology, and the study of brain mechanisms. The cognitive revolution in the late 1950s marked a shift from behaviorism to the study of cognition, allowing for the development of numerical cognition as a distinct field. Early insights into the neural basis of numerical cognition came from studying brain-damaged patients, leading to the formulation of models of brain circuits involved in numerical processing. With the advent of modern neuroimaging methods, further understanding of brain structure and function in numerical cognition has been gained. In terms of testing, reasoning tests, including numerical reasoning, have been widely used in UK schools for identifying learning needs and academic performance. The temporal characteristics of numerical inductive reasoning have also been explored using event-related potentials, revealing different stages of the reasoning process. Overall, the field of numerical reasoning cognitive tests has evolved through the integration of cognitive psychology, neuroscience, and educational research.
How has AM evolved in the aerospace industry over time?5 answersAdditive manufacturing (AM) has evolved in the aerospace industry from its initial use in prototyping to the fabrication of functional components for commercial and military aircraft, as well as space vehicles. AM technologies have enabled the production of parts with complex designs, reduced manufacturing costs, and the use of premium materials with small production runs and short turnaround times. Aerospace companies like Boeing, GE Aviation, and Airbus have already incorporated AM parts in their aircraft, resulting in cost savings and improved design capabilities. The main applications of AM in aerospace include rapid prototyping, rapid tooling, repair, and direct digital manufacturing (DDM) of parts made of metal, plastic, ceramic, and composite materials. However, there are still challenges to overcome, such as the development of standards and qualifications, sustainability, and supply chain development, before AM can be widely adopted in mass production in the aerospace industry.

See what other people are reading

What is Gaussian quadrature in reinforced concrete beam?
5 answers
Gaussian quadrature in reinforced concrete beams refers to a method used for accurate and efficient analysis of structural behavior. This technique involves utilizing Gaussian quadrature for sections subjected to axial and unsymmetrical bending forces, allowing for analysis of various geometric forms and section types with different parameters like depth and neutral axis inclination angle. By implementing Gaussian quadrature, the method ensures precise resolution of nonlinear behavior in reinforced concrete frame structures, offering a high level of accuracy and computational efficiency. This approach has been compared with other methods like fiber decomposition, highlighting its superior performance in terms of both accuracy and speed of computation.
What are the methods used to detect and correct welded imperfections in steel constructions?
4 answers
Various methods are employed to detect and correct welded imperfections in steel constructions. Visual testing is a fundamental method but can be subjective and time-consuming. Automatic defect detection using image analysis is effective, with deep learning approaches showing higher accuracy compared to traditional methods. One approach involves detecting abnormal subsequences in welding voltage signals using One-Class SVM with distance substitution kernels, enabling real-time monitoring and diagnosis of welding defects. Additionally, a smart quality control method based on digital twin technology enhances pre-construction quality control through data analysis and prediction, improving overall quality management efficiency. Implementing tools like the Seven tools technique aids in quality control and analysis to reduce defects and increase production cost efficiency in steel constructions.
How does the predictor-corrector algorithm work in Continuation Power Flow for PV curve prediction?
5 answers
The predictor-corrector algorithm in Continuation Power Flow (CPF) for PV curve prediction involves gradually increasing load and generation to obtain different points on the power voltage curve. This algorithm consists of prediction, parameterization, correction, and step size determination steps. The prediction step utilizes predictors, which can be linear or nonlinear,́ to forecast the next operating point accurately. Parameterization is crucial to prevent divergence during correction step calculations, ensuring the success of the CPF process. By combining various parameterization methods strategically based on the distance between predicted and exact solutions, the correction step can converge faster, enhancing the effectiveness of CPF in voltage stability analysis. Additionally, the predictor-corrector approach is utilized in other fields like approximating solutions for nonlinear equations and high-dimensional stochastic partial differential equations.
How to do a model in quantum machine learning?
5 answers
To create a model in quantum machine learning (QML), one approach involves employing variational quantum circuits as computational models, known as Variational Quantum Machine Learning (VQML). Another method is through quantum kernel estimation, where quantum circuits estimate similarity measures between classical feature vectors. Additionally, quantum support vector machines and quantum kernel ridge models utilize quantum states to predict system characteristics, demonstrating accurate predictions comparable to classical models. It is crucial to consider inductive biases in QML models to address trainability and generalization issues, leading to the development of group-invariant models that respect underlying symmetries in the data. Various algorithms and techniques such as quantum boosting, quantum neural networks, and quantum principal component analysis contribute to the diverse landscape of QML model creation.
What is meshing in finite element analysis?
5 answers
Meshing in finite element analysis refers to the process of discretizing a physical object or its domain into smaller elements to facilitate numerical simulations. The quality of the mesh directly impacts the accuracy, speed, and efficiency of the solution obtained through finite element analysis. Meshing involves defining cell properties, mesh properties on a geometric model, and the actual mesh generation process. Different methods and techniques are employed to create meshes that are efficient, reliable, and suitable for the specific problem being analyzed. The goal is to create a mesh that optimally represents the complex geometry of the object under study while minimizing computational resources and time requirements.
What is meshing?
5 answers
Meshing is a crucial step in various fields, including finite element analysis and social network analysis. In the context of finite element analysis, meshing involves discretizing physical objects into elements to solve complex equations efficiently. It plays a vital role in determining the accuracy, stability, and computational efficiency of simulations. On the other hand, in social network analysis, meshing refers to modeling group dynamics through hypergraphs to better understand interactions within multi-user groups. The development of scalable systems like MESH highlights the importance of analyzing social structures beyond individual interactions. Overall, meshing is a fundamental process that optimizes problem-solving in various domains by transforming complex structures into manageable elements for analysis and understanding.
What is meshing ansys ?
5 answers
Meshing in ANSYS refers to the process of discretizing a continuous object into a finite number of elements. The accuracy of simulation results heavily relies on the quality and adequacy of the mesh. ANSYS Workbench offers various methods to estimate mesh discretization errors, such as Stress Energy Error, Element Stress Deviation, Percentage Error in Energy Norm, and Maximum and Minimum stress bound. Meshing is a critical step in computational fluid dynamics (CFD) simulations, where different mesh techniques like overset mesh, morphing mesh, and moving mesh are utilized to enhance accuracy. Additionally, novel approaches involving machine learning, like using artificial neural networks (ANNs) to predict optimal finite element meshes, have been introduced to improve mesh quality and efficiency.
How does rock blasting in underground mining affect the stability of the rock mass?
5 answers
Rock blasting in underground mining significantly impacts the stability of the rock mass. The interaction between rock and explosives influences various aspects such as breakage, fragmentation, and induced hazards, requiring optimization of design parameters for desired outcomes. Blast-induced noise and ground vibrations from rock fragmentation can affect mine stability and safety, emphasizing the importance of evaluating slope stability and the influence of powder factor on ground vibration and noise levels. Additionally, blast-induced seismicity near hydraulic structures can pose challenges, necessitating careful consideration to ensure stability during construction. Furthermore, blasting excavation in underground mining can cause motion and energy release in the rock mass, leading to deformation and stress changes in surrounding rock, highlighting the complexity of factors influencing stability in underground roadways.
How do finite differences affect the accuracy of geophysical resistivity calculations?
5 answers
Finite differences play a crucial role in the accuracy of geophysical resistivity calculations. Different finite difference methods are employed to enhance accuracy and efficiency in modeling resistivity. The finite difference method is utilized for 2.5D modeling calculations, simplifying the process and improving efficiency by transforming the problem into a frequency domain one. Additionally, the use of mimetic finite-difference schemes on unstructured meshes ensures high solution accuracy in DC resistivity forward modeling, with adaptivity for complex structures and topography. Furthermore, the choice of discretization scheme in finite-difference modeling significantly impacts accuracy, with certain schemes yielding better results and coupling coefficients, ultimately affecting the overall accuracy of resistivity calculations. By integrating various finite difference methods and solvers, geophysical resistivity calculations can achieve both accuracy and computational efficiency.
What is the impact of different numerical methods on the computational efficiency of resistivity calculations using finite differences?
5 answers
Different numerical methods have varying impacts on the computational efficiency of resistivity calculations using finite differences. The mimetic finite-difference method allows for adaptive mesh refinement, achieving high solution accuracy. The Cholesky algorithm and conjugate gradient method are compared for resistivity modeling, with Cholesky showing faster computation and lower memory requirements. A specific finite difference method is implemented to handle high conductivity contrasts and topographical variations, ensuring accuracy on unstructured meshes. Upgridding in the finite-difference method reduces computation time by nearly half by optimizing cell aspect ratios and unknowns. Different discretization schemes and equation solvers impact accuracy and speed, with volume-weighted averages and the conjugate gradient method showing efficiency in resistivity modeling.
What is hexahedral mesh in abaqus?
4 answers
A hexahedral mesh in ABAQUS refers to a type of finite element mesh structure that consists of hexahedral elements. These elements are commonly used in simulations for their advantages in accuracy and efficiency. Hex-dominant meshes, a subset of hexahedral meshes, offer a compromise between complexity and regularity, potentially combining benefits of both tetrahedral and hexahedral meshes. Understanding the structure of hex-meshes is crucial for mesh generation and optimization tasks, as they can be complex due to various singularities. Researchers have developed methods to decompose hex-mesh structures into sub-structures for better analysis and quantification of complexity, aiding in mesh exploration and evaluation. Overall, hexahedral meshes play a significant role in finite element analysis within ABAQUS, offering a balance between accuracy and computational efficiency.