Darrell Pepper

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10 years, 275 days
1968: BSME - Univ of Missouri - Rolla (now MS&T) 1970: MSAE - University of Missouri - Rolla 1974: PhD - University of Missouri - Rolla 1974-1987: E. I. Dupont de Nemours, Savannah River Laboratory, Aiken, SC; various tech and mgr positions 1987-1990: Chief Scientist, The Marquard Co, Van Nuys, CA - NASP program 1988-1995: Co-founder and CEO, Advanced Projects Research, Inc., Moorpark, CA 1988-1992: Professor of Mech. Engr., California State University Northridge 1992-present: Professor of Mechanical Engineering, UNLV; 1996-2002 Chair; 2002-2003 Dean 1996-present: Director, Nevada Center for Advanced Computational Methods 2004: ASME Confressional Fellow, senior legislative fellow - US Senator Dianne Feinstein 2001-2016: Co-founder and EVP, Nevada Energy and Environmental Systems 2011-2013: Distinguished Visiting Professor, EM Dept., US Air Force Academy, CO ~ 350 publications consisting of referred journals, conferences, textbooks, and reports

MaplePrimes Activity

These are replies submitted by Darrell Pepper

The results can vary significantly with the value of c - the shape factor. Try different values to see what occurs with regards to stability and consistency. This is still somewhat unknown and generally done through trial and error. 

@Joe Riel 

Joel, you are correct - eqn 3 got duplicated as eqn 4. Eqn 4 should be the MQ trial function - which also shows up in final form as Eqn 5.  


Dr. Subramanian,

We also address 2-D and 3-D, and include finite element code listings in MAPLE and MATLAB for heat transfer, stress-strain, and fluid flow (for forced as well as free convective flow in 2-D). There is a website that can be reached through CRC Press that will allow you to download codes, including FORTRAN listings, as well as power point slides (an online course has been taught for some years now at UNLV) including a complete set of homework problems with solutions. A series of videos were also prepared but may be restricted to only UNLV. I am not using fsolve - in fact the programming is rather primitive, but done so to illustrate concepts and principles. Suggested improvements are welcome! There is a chapter of the boundary element method (with codes) and the chapter on meshless methods. My other book with Dr. Kassab and Dr. Divo, published by ASME Press, contains additional details regarding the meshless method.

Darrell Pepper


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