scispace - formally typeset
Search or ask a question

What is the current state of research on hypersonic and supersonic flow? 


Best insight from top research papers

Research on hypersonic and supersonic flow is currently focused on various key technologies such as integrated aerodynamic configuration, propulsion technology, thermal protection technology, navigation and control technology . High fidelity modeling and simulation methods are being developed to predict the behavior of flowfield throughout a wide range of flight regimes, including highly rarefied supersonic gas flows . The development of new CFD platforms and advanced compressible solvers are being used to estimate the performance of combined propulsion systems during the supersonic to hypersonic transition . Efforts are also being made to improve the fidelity of internal energy nonequilibrium modeling for hypersonic gas flow simulations . Additionally, there is ongoing research on advanced hypersonic airbreathing propulsion based on supersonic combustion technology .

Answers from top 4 papers

More filters
Papers (4)Insight
The paper discusses the development of new aerospace vehicles using hypersonic airbreathing propulsion based on supersonic combustion technology. It does not provide information on the current state of research on hypersonic and supersonic flow.
The provided paper focuses on the modeling of internal energy nonequilibrium in hypersonic gas flow simulations, but it does not provide information on the current state of research on hypersonic and supersonic flow.
The current state of research on hypersonic and supersonic flow is not mentioned in the provided paper.
The paper discusses the development of a unified flow model for compressible flows and compares simulation results with experimental data for rarefied hypersonic flows. It does not provide a comprehensive overview of the current state of research on hypersonic and supersonic flow.

Related Questions

What are the negative impact of Supersonic and hypersonic aircraft in terms of Safety considerations for Aerospace engineers?4 answersSupersonic and hypersonic aircraft pose significant safety challenges for aerospace engineers due to intense aerodynamic heating causing thermal deformation and material degradation. The extreme environmental conditions at high Mach numbers require close attention to aerodynamics, materials, and flight control. Changes in aerodynamic configurations can affect controllability, necessitating supplemental reaction-control-jets or alternative control methods to maintain stability during high-speed flight. Additionally, the dynamic characteristics of hypersonic aircraft, such as highly coupled and nonlinear dynamics, require specialized control system designs to address uncertainties, failures, and elastic deformations in the aircraft structure. These factors highlight the critical importance of ensuring thermal safety, dynamic stability, and effective control systems in the design and operation of supersonic and hypersonic aircraft.
What are the positive impact of Supersonic and hypersonic aircraft in terms of Boost in tourism for Tourism industry?4 answersSupersonic and hypersonic aircraft, flying at Mach 5 to 8, offer a significant boost to the tourism industry by enabling travelers to cover very long distances in extremely short times, faster than traditional supersonic transport. These advanced aircraft, fueled by liquid hydrogen, provide rapid and efficient travel options, attracting more tourists due to reduced travel times and increased accessibility to distant destinations. The speed and efficiency of supersonic and hypersonic flights can lead to an increase in tourism revenue by accommodating more travelers and enhancing overall travel experiences. Additionally, the convenience and novelty of these high-speed aircraft can contribute to the growth of the tourism sector by making far-off destinations more accessible and appealing to a broader range of tourists.
What are the positive impact of Supersonic and hypersonic aircraft in terms of Increased capacity for Air traffic control?5 answersSupersonic and hypersonic aircraft offer increased capacity for air traffic control through advancements in aerodynamics, materials, and propulsion systems. These aircraft can travel at high speeds, reducing travel times significantly, which can enhance airspace utilization and efficiency. Additionally, the use of liquid hydrogen (LH2) as fuel in hypersonic aircraft can potentially reduce emissions, benefiting the environment. Furthermore, innovations like streamlining control mechanisms and variable wing span designs in hypersonic aircraft contribute to improved controllability and decreased drag, enhancing overall air traffic management. The integration of technologies like electric induction heating for aerodynamic control and clutch systems for engine disconnection at different speeds further optimize performance and operational flexibility, potentially easing air traffic congestion.
What are the positive impact of Supersonic and hypersonic aircraft in terms of Improved efficiency for Aerospace engineers?5 answersSupersonic and hypersonic aircraft offer significant benefits in terms of improved efficiency for aerospace engineers. These aircraft can enable high-speed transportation, space travel, and point-to-point flights, enhancing overall operational efficiency. The utilization of advanced propulsion systems like hybrid ramjet/scramjet/rocket engines in hypersonic vehicles requires a closer integration of aerodynamics, materials, and design principles, leading to enhanced performance and structural durability. Additionally, innovative concepts such as the hypersonic bi-directional flying wing design show high aerodynamic efficiency at both subsonic and hypersonic speeds, offering a solution to the challenges faced in conventional hypersonic systems and allowing for operation on conventional runways. These advancements not only reduce shock wave resistance, improve flight speeds, and decrease fuel consumption but also promote the development of hypersonic technology.
What are the current challenges in understanding and predicting hypersonic boundary layer transition on complex geometries?5 answersUnderstanding and predicting hypersonic boundary layer transition on complex geometries poses challenges due to insufficient transition models for high-speed flows. Research highlights the impact of instabilities on heat transfer and aerodynamic drag in hypersonic boundary-layer flow, necessitating effective stabilization methods. The complexity of transition scenarios, influenced by flow conditions and geometry, requires incorporating multiple instability mechanisms into transition models for accurate predictions. Investigating the influence of roughness elements on boundary layer transition reveals the need to manage vortical structures for turbulence onset, emphasizing the importance of element sizing and arrangement. Enhancing prediction accuracy involves employing advanced models like gas-kinetic schemes coupled with turbulence models, which have shown improved consistency with experimental data in hypersonic transitional flows over cones at various angles of attack.
What are the current advancements in supersonic aircraft aerodynamic technology?5 answersAdvancements in supersonic aircraft aerodynamic technology include the development of shock reduction techniques, such as passive, active, and hybrid flow control methods. Passive flow control approaches involve optimizing airfoil shape, using mechanical spikes, and incorporating forebody cavities. Active flow control techniques focus on opposing jets and energy deposition. Hybrid flow control combines both active and passive methods. Additionally, there have been efforts to reduce sonic boom and drag coefficient through the use of suction and injection slots on the airfoil suction surface. Computational fluid dynamics (CFD) simulations have been used to study the aerodynamic performance of supersonic aircraft, including the shift of the aircraft aerodynamic center and the computation of aerodynamic coefficients. Furthermore, there have been advancements in computational aeroelastic and aeroservoelastic (ASE) analyses, including the development of computational models and the study of flutter boundaries using aeroelastic reduced-order models (ROMs).