Results 31 to 40 of about 83,922 (304)
Aerodynamic Drag Reduction of Emergency Response Vehicles [PDF]
Advances in Automobile Engineering, 2015 This paper presents the first experimental and computational investigation into the aerodynamics of emergency response vehicles and focusses on reducing the additional drag that results from the customary practice of adding light-bars onto the vehicles’ roofs. A series of wind tunnel experiments demonstrate the significant increase in drag that results
Taherkhani, AR +7 more
openaire +5 more sources
Investigation of the aerodynamic characteristics of a lifting body in ground proximity [PDF]
, 2016 The use of cambered hull shapes in the next generation of lighter-than-air vehicles to enhance aerodynamic performance, together with optimized take-off manoeuvre profiles, will require a more detailed understanding of ground proximity effects for such
Garry, Kevin P. +2 more
core +1 more source
Can solar wind viscous drag account for CME deceleration?
, 2012 The forces acting on solar Coronal Mass Ejections (CMEs) in the interplanetary medium have been evaluated so far in terms of an empirical drag coefficient $C_{\rm D} \sim 1$ that quantifies the role of the aerodynamic drag experienced by a typical CME ...
Borgazzi, Andrea +2 more
core +1 more source
Verification of successive convexification algorithm [PDF]
, 2016 In this report, I describe a technique which allows a non-convex optimal control problem to be expressed and solved in a convex manner. I then verify the resulting solution to ensure its physical feasibility and its optimality.
Berning, Andrew Walter, Jr.
core +1 more source
A perspective of the Malaysian highway energy consumption and future power supply [PDF]
, 2011 In this short communication, we discuss the energy consumption trends in the Malaysian road transport sector, with a special emphasis on the energy losses due to vehicle aerodynamic drag on highways.
Musa, Md. Nor, Saqr, Khalid M.
core +1 more source
Aerodynamic Characteristics of High-speed Train Pantographs Based on Jet Flow Control [PDF]
Journal of Applied Fluid MechanicsThe pantograph is a critical instrument that significantly affects the aerodynamics of high-speed trains, posing a considerable challenge to the energy conservation and environmental protection of trains.
S. Huang +5 more
doaj +1 more source
Applied Sciences, 2023 Flat roofs and platform sinking are two common installation configurations for high-speed pantographs. The cavity formed by the platform sinking is a potential source of aerodynamic drag and noise.
Tingting Dong, Tian Li
doaj +1 more source
An Aerodynamic Assessment of Vehicle-Side Wall Interaction using Numerical Simulation [PDF]
, 2020 The effects of induced pressure loads from a realistic vehicle onto the surface of a road-side wall are numerically investigated. Parameters such as vehicle speeds, vehicle-wall separation distances and the effects of inclined walls are examined to ...
Read, Callum, Viswanathan, Harish
core +1 more source
CFD-Based research on control strategy of the opening of Active Grille Shutter on automobile
Case Studies in Thermal Engineering, 2018 Active Grille Shutter is a very promising technology to improve the performance and fuel economy of automotive engines. The engine room temperature and the automobile aerodynamic resistance should both been considered when controlling the opening of the ...
JiaCheng Li +4 more
doaj +1 more source
Aerodynamic Optimization Design of Supersonic Wing Based on Discrete Adjoint
Aerospace, 2023 Reducing fuel consumption and improving the economy by effectively reducing cruising drag is the main objective of the aerodynamic design of supersonic civil aircraft.
Hanyue Rao +5 more
doaj +1 more source