10 Result(s)
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Article
Matthias Meinke
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Article
Open AccessImpact of 2D engine nacelle flow on buffet
Numerical studies on the interaction of nacelle and airfoil shock dynamics are performed. To keep the computational cost at an acceptable level, first 2D investigations on the interaction of nacelle and airfoi...
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Open AccessInvestigation of Lorentz force–induced flow of NaNO3-electrolyte for magnetic field–assisted electrochemical machining
Pulsed electrochemical machining offers great potential to meet growing demands on components like miniaturization, efficiency, and functionalization. Current research activities show that the electrochemical ...
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Article
Numerical Investigation of Jet-Wake Interaction for a Dual-Bell Nozzle
The turbulent wake of a planar generic space launcher equipped with a dual-bell nozzle is numerically investigated to examine the interaction of the dual-bell nozzle jet and the wake flow. The simulation is pe...
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Large-Eddy Simulation of the Unsteady Full 3D Rim Seal Flow in a One-Stage Axial-Flow Turbine
The flow field in a complete one-stage axial-flow turbine with 30 stator and 62 rotor blades is investigated by large-eddy simulation (LES). To solve the compressible Navier-Stokes equations, a massively paral...
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An Adaptive Cartesian Mesh Based Method to Simulate Turbulent Flows of Multiple Rotating Surfaces
An efficient Cartesian cut-cell/level-set method based on a multiple grid approach to simulate turbulent turbomachinery flows is presented. The finite-volume approach in an unstructured hierarchical Cartesian ...
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Numerical Analysis of the Impact of the Interior Nozzle Geometry on Low Mach Number Jet Acoustics
The flow and acoustic fields of subsonic turbulent hot jets exhausting from three divergent nozzles at a Mach number M=0.12 based on the nozzle exit velocity are conducted using a hybrid CFD-CAA method. The flow ...
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Drag Reduction Via Spanwise Transversal Surface Waves at High Reynolds Numbers
The impact of transversal spanwise traveling surface waves on the wall-shear stress distribution of high Reynolds number turbulent boundary layer flows is analyzed using high-resolution large-eddy simulations....
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Article
Friction Drag Variation via Spanwise Transversal Surface Waves
The introduction of spanwise velocity is a promising technique to effect the near-wall turbulent flow field to influence friction drag. However, the essential physical mechanism which significantly reduces fri...
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Numerical Simulation of Riblet Controlled Spatial Transition in a Zero-Pressure-Gradient Boundary Layer
To analyze the fundamental physical mechanism which determines the dam** effect of a riblet surface on three-dimensional transition several numerical simulations of spatial transition in a flat plate zero-pr...
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Large-Scale CFD Data Handling in a VR-Based Otorhinolaryngological CAS-System using a Linux-Cluster
Many of the operations to eliminate complaints concerning respiration impairments fail. In order to improve the success rate, it is important to recognize the responsiveness of the flow field within the nasal ...
