CFD investigation on wheel rotation modelling

Abstract

Moving Reference Frame -grooves (MRFg) approach for modelling tyre rotation is presented.• It is validated on a freely rotating isolated wheel against the sliding mesh approach.• The prediction of tyre pattern modifications using MRFg shows good agreement with experimental measurements on a full scale vehicle.

Unsteady pressure analysis of the near wall flow downstream of the front wheel of a passenger car under yaw conditions

“…The results are based on a simulation performed by Hobeika et. al [26], simulating a driving condition of 100 km/h with zero yaw, using a hybrid RANS-LES turbulence modelling approach and with an Improved Delayed Detached Eddy Simulation (IDDES) formulation. Three seconds of physical time were computed, before the time averaged results over two seconds were calculated.…”

“…The total mesh size was approximately 120 million cells. The detailed setup, as well as the results of a mesh and time step study can be found in Hobeika et al [26]. gives also the information about the sense of rotation.…”

Evaluation of the Multiple Reference Frame Approach for the Modelling of an Axial Cooling Fan

“…This approach is often used in industrial applications, such as cooling of electrical components [1,2], ventilation [3,4], tidal current turbines [5,6] and automotive applications. In the automotive industry, areas of application are, e.g., the rotation of wheels [7] and of the fan for the cooling system. However, there are limitations to this model.…”

CFD investigation on fully detailed and deformed car tires

“…To understand the complex structures in the wheel wake and their interaction with the vehicle body, many research groups focused their research on wheels and their impact on vehicle aerodynamics. (Wickern et al [1] , Landström et al [2] Wittmeier [3] , Schnepf [4] , Haag [5] , Lew et al, [6] Hobeika [7] and many others. )…”

“…Recent studies focused on different simulation methods for the rim like Haag et al [5] , Lew et al [6] , Altmann et al [8] Hobeika and Sebben [7] . Comparing the RWBC to Multiple/Moving Reference Frame (MRF) and Sliding Mesh (SM) methods showed, that the SM method gives the best results for simulating the rim.…”