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''''Robert L. "Bob" Ash''' is a Professor of Mechanical & Aerospace Engineering and an Eminent Scholar<ref>{{citation|url=https://www.odu.edu/academics/odufaculty/recognitions|title=Eminent Scholars|publisher=Old Dominion University|accessdate=2015-09-20}}.</ref> at [[Old Dominion University]] in [[Norfolk, Virginia]]. ==Early life and education== During his childhood in Kansas, his hometown only had one black family. Because of this, Ash believed one-fourth of all black people had red hair, because one of the four members of that family had red hair. In 1968, Ash graduated from [[Tulane University]] in [[New Orleans]] with a PhD in Mechanical and Aerospace Engineering, and in 1963, he graduated from [[Kansas State University]] with a Bachelor of Science in Mechanical Engineering.<ref name="odu.edu">{{cite web|url=https://www.odu.edu/directory/people/r/rash|title=Robert Ash|work=Old Dominion University|accessdate=17 September 2015}}</ref> His research interests include [[vortical]] [[Fluid dynamics|flows]], non-equilibrium phenomena, space systems, and [[Mars]] resources.<ref name="odu.edu"/> == Publications== His most cited papers are: *Bushnell, D. M., Hefner, J. N., and Ash, R. L. (1977). "Effect of Compliant Wall Motion on Turbulent Boundary Layers. presented at the I.U.T.A.M. Symposium on Structure of Turbulence and Drag Reduction, ''Physics of Fluids,'' 20 (10 part 11), (pp. S31-S58)." (cited 170 times according to [[Google Scholar]])<ref name="ref 3">{{cite web|url=https://scholar.google.com/scholar?hl=en&q=%22RL+Ash%22&btnG=&as_sdt=1%2C33&as_sdtp=|title=Effect of Compliant Wall Motion on Turbulent Boundary Layers. presented at the I.U.T.A.M. Symposium on Structure of Turbulence and Drag Reduction, ''Physics of Fluids,'' 20 (10 part 11), (pp. S31-S58).|work=Old Dominion University|accessdate=8 January 2016}}</ref> *Khorrami, M. R., Malik, M. R., and Ash, R. L. (1989). "Application of Spectral Collocation Techniques to the Stability of Swirling Flows." ''Journal of Computational Physics,'' 81, (pp.&nbsp;206–229).(cited 150 times, according to Google Scholar)<ref name="ref 4">{{cite journal|url=http://www.sciencedirect.com/science/article/pii/0021999189900715|title=Application of Spectral Collocation Techniques to the Stability of Swirling Flows.|work=Old Dominion University|accessdate=8 January 2016|doi=10.1016/0021-9991(89)90071-5|volume=81|pages=206–229}}</ref> *Ash, R. L., Dowler, W. L., and Varsi, G. (1978). "Feasibility of Rocket Propellant Production on Mars." ''Acta Astronautica,'' 5, (pp.&nbsp;705–724). (cited 100 times, according to Google Scholar) <ref name="ref 5">{{cite web|url=https://www.researchgate.net/publication/221953501_Feasibility_of_rocket_propellant_production_on_Mars|title=Feasibility of Rocket Propellant Production on Mars.|work=Old Dominion University|accessdate=8 January 2016}}</ref> Groundbreaking for the era published and notable yet,<ref name="WIRED Article 'Making Rocket Fuel on Mars (1978)'">{{cite web|url=https://www.wired.com/2012/11/making-rocket-fuel-on-mars-1978/|title=WIRED Article "Making Rocket Fuel on Mars (1978)".|work=WIRED Article "Making Rocket Fuel on Mars (1978)"|accessdate=8 January 2016}}</ref> Dr. Ash's In-Situ Resource Utilization (ISRU) paper, authored in 1978 as a visiting [[Old Dominion University]] (ODU) Senior Research Scientist at [[JPL]], was the first instance of NASA research into ISRU production of liquid methane-based rocket propellants for a long-duration crewed missions to Mars' surface and return strategy. As initial detailed work of this type, it directly inspired "Mars Direct" and "Mars Semi-Direct" approaches in the following decades, although NASA shifted focus and fiscal resources to LEO and the ISS soon thereafter, versus continuing Moon-to-Mars exploration. As Mars exploration becomes more widely accepted, with the popular examples of [[SpaceX]], [[Inspiration Mars]], and [[Mars One]], the trailblazing work of Dr. Robert "Bob" Ash, and those that followed, like Dr. [[Robert Zubrin]] (and others) beginning in the early 1990s, pioneered the difficult task of showing ISRU's benefits for long-duration, deep space and interplanetary surface exploration. Use of ISRU is now considered central to the feasibility of any mission to Mars or beyond, and remains an area of very active research.<ref name="ref 6">{{cite web|url=http://www.enu.kz/repository/2010/AIAA-2010-799.pdf|title=AIAA article citation (2010)|work=AIAA|accessdate=8 January 2016}}</ref> ==References== {{Reflist}} {{authority control}} {{DEFAULTSORT:Ash, Robert}} [[Category:Old Dominion University faculty]] [[Category:Engineering academics]] [[Category:American mechanical engineers]] [[Category:American aerospace engineers]] [[Category:Tulane University alumni]] [[Category:Kansas State University alumni]] [[Category:Living people]] [[Category:Year of birth missing (living people)]] {{US-academic-bio-stub}} {{Mech-engineering-stub}}'