Showing papers in "Engineering Applications of Computational Fluid Mechanics in 2021"
TL;DR: In this paper, two techniques: deep learning and ensemble deep learning (EDL) were used to predict groundwater level (GWL) for five wells in Malaysia, and two scenarios were proposed, scenario-1 (S1) and scenario-2 (S2) respectively.
Abstract: This study proposes two techniques: Deep Learning (DL) and Ensemble Deep Learning (EDL) to predict groundwater level (GWL) for five wells in Malaysia. Two scenarios were proposed, scenario-1 (S1): ...
50 citations
TL;DR: In this article, the aerodynamic resistance of a double-unit train is investigated to save energy consumption and to increase passenger capacity, but also increase energy consumption, in order to reduce the number of trips.
Abstract: Double-unit trains increase passenger capacity but also increase energy consumption. Therefore, research about the aerodynamic resistance of a double-unit train is of great importance to save energ...
50 citations
TL;DR: In this paper, the authors investigated the seismic performance of a wind turbine that is influenced by both the ice load and the seismic load, and proposed a numerical approach for simulating the seismic behavior.
Abstract: To investigate the seismic performance of a wind turbine that is influenced by both the ice load and the seismic load, the research proposes a numerical approach for simulating the seismic behavior...
36 citations
National Yunlin University of Science and Technology1, University of Southern California2, California Institute of Technology3, University of Hawaii at Manoa4, Semnan University5, University of Tabriz6, Hong Kong Polytechnic University7, Selye János University8, Óbuda University9, Dresden University of Technology10
TL;DR: In this paper, support vector regression (SVR), Gaussian process regression (GPR), and support vector clustering (SWC) were used to predict groundwater level in arid regions.
Abstract: Utilizing new approaches to accurately predict groundwater level (GWL) in arid regions is of vital importance. In this study, support vector regression (SVR), Gaussian process regression (GPR), and...
35 citations
TL;DR: The hybrid SVR-SSA model was identified as more suitable, robust, and reliable than the other models for daily EP estimation in two different ACZ in northern India.
Abstract: Ensuring accurate estimation of evaporation is weighty for effective planning and judicious management of available water resources for agricultural practices. Thus, this work enhances the potentia...
28 citations
TL;DR: Novel hybrid models, namely, Generalized Structure-Group Method of Data Handling (GS-GMDH) and Adaptive Neuro-Fuzzy Inference System with Fuzzy C-Means (ANFIS-FCM) were proposed to predict the daily WL at Telom and Bertam stations located in Cameron Highlands of Malaysia and revealed the better suitability and supremacy of these models.
Abstract: Accurate prediction of water level (WL) is essential for the optimal management of different water resource projects. The development of a reliable model for WL prediction remains a challenging tas...
27 citations
TL;DR: The proposed hybrid model possesses superlative performance compared to all above-mentioned techniques and achieved exceptional results as the highest R 2, the highest 95% confidence degree, and narrower confidence interval width, are achieved.
Abstract: To accurately predict tropospheric ozone concentration(O3), it is needed to investigate the variety of artificial intelligence techniques’ performance, such as machine learning, deep learning and h...
27 citations
Baoji University of Arts and Sciences1, Ankang University2, Universiti Teknologi MARA3, Ministry of Oil4, Islamic University5, Central South University6, Shahid Bahonar University of Kerman7, Ilia State University8, Ton Duc Thang University9, Hong Kong Polytechnic University10, University of Tabriz11, Near East University12, Florida International University13, Abu Dhabi University14, University of Tennessee15, University of Prince Edward Island16, Michigan State University17, King Khalid University18, Universiti Teknologi Malaysia19, University of Southern Queensland20, Texas A&M University21, Asia University (Taiwan)22, New Era Cap Company23
TL;DR: Sediment transport in a river basin is therefore a multifa... as discussed by the authors, which is an important indicator for ecological and geomorphological assessments of soil erosion within any watershed region.
Abstract: River sedimentation is an important indicator for ecological and geomorphological assessments of soil erosion within any watershed region. Sediment transport in a river basin is therefore a multifa...
24 citations
TL;DR: In this article, a dynamical system involving the decaying test of a partially filled liquid tank is analyzed for the design of aircraft fuel tanks, where the wings of the aircraft are assumed to be fixed.
Abstract: A dynamical system involving the decaying test of a partially filled liquid tank is analyzed in the present paper. This analysis is relevant for the design of aircraft fuel tanks, where the wings' ...
22 citations
TL;DR: The dominant vortex structure near the hub in rotor corner separation flow has an important influence on the internal flow of the axial flow rotating machinery as mentioned in this paper, however, the current quantitative re...
Abstract: The dominant vortex structure near the hub in rotor corner separation flow has an important influence on the internal flow of the axial flow rotating machinery. However, the current quantitative re...
21 citations
TL;DR: To check the efficiency of the introduced ANN-BR method, absolute error analysis, histogram studies, regression indices, and mean squared error based figures of merit were used exhaustively to solve the variants of the BCSNF model involving gyro-tactic microorganisms with viscous dissipation, stratification, and heat immersion to study the influence of prominent parameters on the velocity, temperature, concentration, and motile density profiles.
Abstract: In the current study, a novel intelligent numerical computing paradigm based upon the foundation of the artificial neural networks legacy involving the Bayesian regularization (ANN-BR) approach has...
TL;DR: In this article, the effects of adding trapezoidal ribs to microchannel on functionalized multi-walled nano-tubes/water nanofluid heat transfer are examined.
Abstract: In this study, the effects of adding trapezoidal ribs to microchannel on functionalized multi-walled nano-tubes/water nanofluid heat transfer are examined. The dimensionless slip coefficient (0–0.1...
TL;DR: In this paper, the sediment transport in the ejector is modeled as a stochastic and non-linear in nature, and its accurate estimation is a complex and challenging mission.
Abstract: Sediment transport in the ejector is highly stochastic and non-linear in nature, and its accurate estimation is a complex and challenging mission. This study attempts to investigate the sediment re...
TL;DR: In this article, the two-phase flow of nanofluids and their thermal energy transport coefficients in 3D diamond-shaped cavities with square-shaped barriers having reducing dimensi...
Abstract: This work computationally explores the two-phase flow of nanofluids and their thermal energy transport coefficients in 3D diamond-shaped cavities with square-shaped barriers having reducing dimensi...
TL;DR: Among several indicators for river engineering sustainability, the longitudinal dispersion coefficient (Kx) is the main parameter that defines the transport of pollutants in natural streams as mentioned in this paper, and it is one of the most important indicators for sustainable river engineering.
Abstract: Among several indicators for river engineering sustainability, the longitudinal dispersion coefficient (Kx) is the main parameter that defines the transport of pollutants in natural streams. Accura...
TL;DR: In this article, the vibration monitoring of the rudder operating in the propeller wake with fluid-structure in a single-board aircraft is described. But the results show that the results are limited.
Abstract: The propeller wake can cause vibrations on the rudder surface, which worsen the noise and reliability. The vibration monitoring of the rudder operating in the propeller wake with fluid-structure in...
TL;DR: The pre-swirl system can offer cooling air to improve the extreme thermal shock to the rotating turbine blades in a gas turbine engine as discussed by the authors, which can improve the performance of the turbine blades.
Abstract: The pre-swirl system can offer cooling air to improve the extreme thermal shock to the rotating turbine blades in a gas turbine engine. This study focuses on theoretical, experimental, and numerica...
TL;DR: In this paper, the idea of using the compact device with higher heat transfer potential has encouraged researchers to use microchannels, creating sinusoidal walls is a technique leading to better effectiveness an...
Abstract: The idea of using the compact device with higher heat transfer potential has encouraged researchers to use microchannels. Creating sinusoidal walls is a technique leading to better effectiveness an...
TL;DR: In this paper, the rigid vorticity transporporporation of the vortex is investigated in hydro-energy machinery, and its swirling features are mainly determined by the rigid rotation part of vortivity.
Abstract: Vortex is the dominant flow structure in hydro-energy machinery, and its swirling features are mainly determined by the rigid rotation part of vorticity. In this study, the rigid vorticity transpor...
TL;DR: Suspended sediment load estimation is essential for both short-and long-term water resources management as discussed by the authors, where suspended sediments are taken into account as an important factor of the service life.
Abstract: Suspended sediment load (SSL) estimation is essential for both short- and long-term water resources management. Suspended sediments are taken into account as an important factor of the service life...
TL;DR: In this article, the turbulent convective thermal transfer in channel heat exchangers (CHEs) was studied numerically via the CFD (Computational Fluid Dynamics) method.
Abstract: The turbulent convective thermal transfer in channel heat exchangers (CHEs) is studied numerically via the CFD (Computational Fluid Dynamics) method. Deflectors are inserted on the hot bottom walls...
TL;DR: In this article, several techniques have been used to eliminate CO2 from the output gas mixtures, one of these methods is CO2 removal from the mixture of CO 2 and CO 2.
Abstract: Due to industrial development, the volume of carbon dioxide (CO2) is rapidly increasing.. Several techniques have been used to eliminate CO2 from the output gas mixtures. One of these methods is CO...
TL;DR: The results show that the LSSVM-BA model showed the best prediction accuracy during the training and test phases, and may have a remarkable practical implication as it could be an economic alternative to the expensive laboratory solution, which is costly and time-consuming.
Abstract: This research aims to estimate the overflow capacity of a curved labyrinth using different intelligent prediction models, namely the adaptive neural-fuzzy inference system, the support vector machi...
TL;DR: A multi-step supervised machine learning evolutionary algorithm (MSMLEA) is proposed to improve the model's performance at two gaging stations, namely Rig-Cheshmeh and Soleyman-Tangeh, in the Tajan River, Iran and results suggest the ITD-MARS-CSA outperforms other models.
Abstract: Monitoring the water contaminants is of utmost importance in water resource management Prediction of the total dissolved solid (TDS) is particularly essential for water quality management and plan
TL;DR: In this paper, the effects of CO2 gas in geothermal water and the scale deposition formed in the wellbore on the flow characteristics were numerically investigated, and the results showed that CO2 can significantly affect flow characteristics.
Abstract: In this study, we numerically investigated the effects of CO2 gas in geothermal water and the scale deposition formed in the wellbore on the flow characteristics. Geothermal water that contains CO2...
TL;DR: With airborne transmissions found as one of the major transmission routes of SARS-CoV-2, its transmission in airliner cabin environments drew special attention due to high number of imported cases.
Abstract: With airborne transmissions found as one of the major transmission routes of SARS-CoV-2, its transmission in airliner cabin environments drew special attention due to high number of imported cases ...
TL;DR: The wiser method of acquiring a higher performance compressor is to optimize a current compressor, discussed in this paper, based on the combination of an artificial neural network and a genetic algorithm.
Abstract: Compressor design is always a prevalent research issue as nowadays the compressor demands higher performance. Designing afresh a new compressor of higher aerodynamic performance will cost a tremend...
TL;DR: In this article, the authors proposed to enhance the efficiency of gear systems to reduce fuel consumption and overall weight by reducing windage power losses in high-speed gear systems, such as aero-engine apps.
Abstract: Enhancing the efficiency of gear systems is of significance to reduce fuel consumption and overall weight. Windage power losses become prevailing in high-speed gear systems, such as aero-engine app...
TL;DR: In this paper, the authors investigated the hydrodynamic properties of a single-stage centrifugal pump with inlet inducer and Radial Guided Vanes (RGVs) influenced by the clocking effect.
Abstract: This paper investigates the hydrodynamic characteristic of a single-stage centrifugal pump with inlet inducer and outlet Radial Guided Vanes (RGVs) influenced by the clocking effect for the first t...
TL;DR: Both potential and wake interactions are usually the primary mechanisms related to the unsteadiness in turbomachines as mentioned in this paper, however, it is usually difficult to distinguish their effects on flow evolution, and therefore it is difficult to detect their influence on turbomachine stability.
Abstract: Both potential and wake interactions are usually the primary mechanisms related to the unsteadiness in turbomachines. However, it is usually difficult to distinguish their effects on flow evolution...