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Browsing AE Theses and Dissertations by Title

Browsing AE Theses and Dissertations by Title

Now showing items 40-59 of 77

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 ...
Ice particle trajectory simulation

Suares, Ian Greg (Wichita State University, 2005-12)

Large ice particles shed from an airframe can cause damage to downstream aerodynamic surfaces and aft mounted engines. A simulation tool was developed to compute the trajectories of shed ice particles and determine the ...
Local bending containment in sandwich panels with subsurface core damage

Ghimire, Mohan (Wichita State University, 2008-05)

The compressive residual strength and behavior of impact damaged sandwich panels are governed by the amount of non-visible core damage underneath the facesheets. The failure modes under in-plane compressive loading are ...
A model following inverse controller with adaptive compensation for general aviation aircraft

Bruner, Hugh S. (2007-05)

The theory for an adaptive inverse flight controller, suitable for use on General Aviation aircraft, is developed in this research. The objectives of this controller are to separate the normally coupled modes of the basic ...
Models and methods for bird strike load predictions

Nizampatnam, Lakshmi S. (Wichita State University, 2007-12)

Typical bird shapes used in numerical bird strike analyses include a number of primitive geometries, such as the right circular cylinder, hemi-spherical cylinder, sphere and ellipsoid. There are also some simplifying ...
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 and experimental investigation of ice shedding

Shimoi, Koji (Wichita State University, 2010-05)

The shedding of ice accreted on aircraft surfaces poses a serious threat to flight safety as it can cause severe damage to downstream aircraft components such as aft-mounted engines. While there is strong need for ice ...
Numerical and experimental studies on the use of a Split Hopkinson Pressure Bar for high strain rate tension testing

Acosta, Juan Felipe (Wichita State University, 2012-07)

The Split Hopkinson Pressure Bar (SHPB) technique is widely used to dynamically characterize metals and is increasingly being used to characterize non-metallic materials such as fiber reinforced polymeric composite materials. ...
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 a wing hot air ice protection system

Rodríguez, Alonso Oscar Zamora (Wichita State University, 2009-12)

Aircraft icing is a recurrent aviation safety concern. In the past eight years alone, eight icing accidents involving business jets and other aircraft have occurred. The accumulation of ice on critical aerodynamic surfaces, ...
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 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 ...
Numerical simulation of wall-pressure fluctuations due to turbulent boundary layer

Mahmoudnejad, Niloufar (Wichita State University, 2011-12)

Pressure fluctuations associated with turbulent boundary layer have been a prominent issue over the past few decades. In order to simulate pressure fluctuations beneath a turbulent boundary layer, a numerical investigation ...
Numerical simulations of blood flow in arteries using fluid-structure interactions

Shaik, Eleyas (Wichita State University, 2007-07)

Cardiovascular disease (CVD) is the number one cause of death in the United States and worldwide. Among the various CVDs, coronary artery disease (CAD) is the leading cause of death among both men and women. Of the various ...
Online aerodynamic parameter estimation for a fault tolerant flight control system

Singh, Balbahadur (2005-12)

Wichita State University (WSU) and Raytheon Aircraft Company are working toward the development of a flight control system to reduce the workload for a pilot under normal as well as deteriorated flight conditions. An ’easy ...
Operational usage and flight loads study of global express XRS business jet

Yee, Alhambra L. (Wichita State University, 2012-05)

Operational usage analysis and flight loads analysis is performed on one Global Express XRS business jet. A total of 388 useful flights with 1053 hours and 454,254 nm are analyzed. Usage analysis performed during airborne ...
Optimization of analysis using VCCT’s for prediction of failure initiation of adhesively bonded joints

Martino, Silvio Damian (Wichita State University, 2011-12)

Adhesively bonded joints are used on numerous applications involving light-weight composite materials. Consequently, the successful modeling and subsequent analysis of bonded joints involving more than one adherend ...
Parallelization and optimization of higher-order Finite-difference methods utilizing MPI

Irvin, Lance J. (Wichita State University, 2010-12)

Parallelization of computational models is key to utilizing the widely available computational resources of today to solve problems in ways the computational science community could not yesterday. The main focus of the ...