A5000006583- Fluid Dynamics and Turbulent Flows
- Combustion and flame dynamics
- Computational Fluid Dynamics and Aerodynamics
- Particle Dynamics in Fluid Flows
- Advanced Combustion Engine Technologies
- Aerodynamics and Acoustics in Jet Flows
- Wind and Air Flow Studies
- Radiative Heat Transfer Studies
- Plant Water Relations and Carbon Dynamics
- Rheology and Fluid Dynamics Studies
- Heat Transfer Mechanisms
- Gas Dynamics and Kinetic Theory
- Probabilistic and Robust Engineering Design
- Advanced Mathematical Modeling in Engineering
- Fluid Dynamics and Vibration Analysis
- Numerical methods in inverse problems
- Navier-Stokes equation solutions
- European history and politics
- Numerical methods for differential equations
- Computer Graphics and Visualization Techniques
- Atmospheric chemistry and aerosols
- Meteorological Phenomena and Simulations
- Combustion and Detonation Processes
- Fire dynamics and safety research
- Cyclone Separators and Fluid Dynamics
University of California, Davis
2006-2024
Technical University of Darmstadt
2013-2020
University of California System
2001
University of California Office of the President
1995
Executive Office of the President
1995
Sandia National Laboratories
1991
Sandia National Laboratories California
1984-1989
Imperial College London
1987
Von Karman Institute for Fluid Dynamics
1979-1982
RWTH Aachen University
1978
Article Closure of the Transport Equation for Probability Density Funcfion Turbulent Scalar Fields was published on January 1, 1979 in journal Journal Non-Equilibrium Thermodynamics (volume 4, issue 1).
Abstract Anexpanded model of turbulent nonpremixed combustion is herein presented. In the model, scalar mixing and reactions are described by a probability density function (pdf) submodel capable or handling five scalars, while velocity field second-order moment closure. Two plausible chemical reaction models considered: five-scalar, four-step, reduced mechanism four-scalar constrainted equilibrium model. Detailed comparisons predictions with laser Raman experimental data provide valuable...
To characterize the dynamics and physical properties of isoconcentration surfaces a random reactive scalar field, an instantaneous isosurface quantity its transport equation are introduced. For turbulent flows, mean area surface per unit volume is studied through derived by using probability density function (pdf) formalism. This approach allows value used to define level be treated as independent variable. It also leads definition function. The developed formalism applied premixed...
Modern unsteady (multi-)field visualizations require an effective reduction of the data to be displayed. From a huge amount information most informative parts have extracted. Instead fuzzy application dependent notion feature, new approach based on theoretic concepts is introduced in this paper detect important regions. This accomplished by extending concept local statistical complexity from finite state cellular automata discretized (multi-)fields. Thus, can highlighted...
We present a novel approach for analyzing two-dimensional (2D) flow field data based on the idea of invariant moments. Moment invariants have traditionally been used in computer vision applications, and we adapted them purpose interactive exploration data. The new class moment developed allows us to extract visualize 2D patterns, under translation, scaling, rotation. With our one can study arbitrary patterns by searching given set any type pattern as specified user. Further, supports...
The transport equation for the probability density function of a scalar in turbulent shear flow is analyzed and closure based on gradient flux model an integral dissipation term put forward. complemented by two-equation turbulence model. Application to several flows proves capability determine passive scalars.
This paper proposes a novel trailing-edge treatment to reduce noise. Prior studies showed that both porous materials and wavy trailing edges have decent noise reduction. Therefore, combination of porosity waviness, or edge, could possibly result in greater Improved delayed detached eddy simulations are performed compare the aeroacoustic performance edge those clean airfoil, edge. It is revealed reduces overall sound pressure level by 8.1 dB without compromising aerodynamic efficiency. The...