Browsing CE Theses and Dissertations by Author "Hoffmann, Klaus A."
Now showing items 1-20 of 29
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A meshing technique for unsteady computational fluid dynamics solutions for rapidly changing boundaries and internal configurations
Matthew, John R. (Wichita State University, 2015-05)A method to generate structured meshes is developed that allows for rapid re-meshing of CFD problems that have rapidly changing boundaries or internal configurations. These types of problems have typically been solved by ... -
Computational fluid dynamics and fluid structure interaction analysis on the use of inflatable wing structures
Kosnik, Evan D. (Wichita State University, 2021-07)The research conducted in this thesis was done to ascertain the potential of using drop-stitch panels for inflatable wing designs. This was done primarily by using 2D CFD analysis on airfoil sections approximating the shape ... -
Detached eddy simulation of turbulent flow over an open cavity with and without cover plates
Syed, Shoeb Ahmed (Wichita State University, 2010-05)The study of three-dimensional open cavity flow with and without cover plates at the edges of the cavity at freestream Mach number of 0.85 was performed. Such open cavities find their application in landing gear wells, ... -
Detached eddy simulations of partially covered and raised cavities
Gadiparthi, Sandeep Kumar (Wichita State University, 2012-05)The study of cavity flows has played a crucial role in understanding the aeroacoustics and aerodynamics of bodies with cavities. This new understanding has allowed challenges such as reduction in noise levels to be addressed. ... -
Detached-eddy simulation of turbulent flow over a wiper blade
Urban, Michael Patrick (Wichita State University, 2008-12)Decreasing noise and improving efficiency is an important trend for the future jetliner industry. The predominant sources of aerodynamic noise are created from attached turbulent boundary layers (TBL) as well as separated ... -
Development and application of perfectly matched layer for numerical boundary treatment
Velu, Srinivasa Perumal (Wichita State University, 2010-05)This master’s-level thesis work had focused on the boundary treatments for computational fluid dynamics problems, especially those with unbounded domains. Therefore, it involved a rigorous literature survey on boundary ... -
Development and numerical investigation of magneto-fluid-dynamics formulations
Khan, Ovais U. (Wichita State University, 2009-12)Magnetofluiddynamics (MFD) is the branch of fluid dynamics that involves mutual interaction of electrically conducting non-magnetic fluids and magnetic fields. MFD offers promising advances in flow control and propulsion ... -
Development of perfectly matched layer numerical boundary condition in a generalized coordinate system
Velu, Srinivasa Perumal (Wichita State University, 2013-12)The research activity leading to this dissertation focused on the boundary treatment for computational fluid dynamics problems, especially those with unbounded domains. This involved a rigorous literature survey of boundary ... -
High-order incompressible Navier-Stokes equations solver for blood flow
Khurshid, Hassan (Wichita State University, 2012-07)A high-order finite difference solver was written to solve the incompressible Navier-Stokes (NS) equations and was applied to analyze the blood flow. First, a computer code was written to solve incompressible Navier- Stokes ... -
Hybrid parallelization and optimization of a higher-order Navier-Stokes equation solver
Selvam, Mukundhan (Wichita State University, 2015-12)With the contemporary emerging transition for the past two decades in high-performance computing (HPC) towards clusters of nodes, it is possible to obtain an efficiently scalable computational fluid dynamics (CFD) code by ... -
Numerical analysis of effects of leading-edge protuberances on aircraft wing performance
Malipeddi, Anil Kumar (Wichita State University, 2011-07)This thesis investigates the effects of biologically inspired leading-edge protuberances on aircraft wings. The study of humpback whales and their flipper performance was the impetus to modifying the leading edge of an ... -
Numerical estimation of slipstream characterisitics for propellers operating at low Reynolds numbers
Pampala, Ramya B. (Wichita State University, 2019-07)An accurate estimation of propeller slipstream characteristics is essential to evaluate the performance characteristics of airframe components placed within the propeller slipstream. The complicated vortical structures of ... -
Numerical investigation and flow interactions of a mixed-compression hypersonic inlet
Bes, Pierre-Andre (Wichita State University, 2014-12)A numerical investigation of a fixed geometry mixed-compression scramjet inlet is presented in this paper to illustrate the compression process and flow interactions of a hypersonic inlet prior to supersonic combustion. ... -
Numerical investigation of a jet flow with a hatch and an opening
Nagrecha, Mrinal V. (Wichita State University, 2011-12)The goal of this project was to establish a datum for acoustics generated in an exhaust flow from a jet pipe, due to the presence of an opening with a hatch at an angle, by using the Computational Fluid Dynamics (CFD) tool ... -
Numerical investigation of pressure gradient effect on wall-pressure fluctuations
Ng, Kok Chian (Wichita State University, 2013-05)This research investigates the effect of pressure gradient on wall-pressure fluctuations in turbulent boundary layers using a delayed detached eddy simulation (DDES) turbulence scheme. The results are compared to Goody's ... -
Numerical method for compressible turbulence with shock waves
Arshed, Ghulam Murshed (Wichita State University, 2012-07)This dissertation proposes improvements in the numerical algorithm for the dynamics of flows that involve discontinuities and broadband fluctuations simultaneously. These two flow features suggest numerical strategies of ... -
Numerical simulation of blood flow in arterial stenosis under steady and pulsatile flow conditions
Dave, Parth Pranavbhai (Wichita State University, 2011-05)Cardiovascular diseases (CVDs) are among the leading causes of death in the world. In this study, an attempt was made to model the flow dynamics of blood in abnormally narrowed artery. Finite volume solver FLUENT was ... -
Numerical simulation of fluid-structure interaction for tilting-disk mechanical heart valves
Aliabadi, Ardavan (Wichita State University, 2013-05)According to the United States Department of Health and Human Services, 27.1 million non-institutionalized adults were diagnosed with heart disease in 2010. The number of deaths associated with heart disease in 2009 was ... -
Numerical simulation of pulsatile blood flow across a tilting–disk mechanical heart valve
Nejadmalayeri, Alireza (Wichita State University, 2007-07)To overcome several clinical challenges involving mechanical heart valves, accurate numerical simulation of blood flow through these devices has been of interest. Since heart disease is the leading cause of death around ... -
Numerical simulation of steady and pulsatile flow in stenosed tapered artery and abdominal aortic aneurysm using κ-ω model
Tala, Chiragkumar D. (Wichita State University, 2010-12)The effect of hemodynamics on cardiovascular disease (CVD) is very important since CVD is the number one killer nationwide and around the globe. Coronary artery disease (CAD), also called arteriosclerosis, is a common ...