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- Bob Ash
- Professor & Eminent Scholar
- Mechanical & Aerospace Engineering
- 1315 Engr and Comp Sci Bldg
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Norfolk,
VA
23529
- 757-683-4914
- rash@odu.edu
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Education
- Tulane University,
1968
- Major: Mechanical and Aerospace Eng., Thermo/Fluids
- Degree: Ph. D.
- Tulane University,
1966
- Major: Mechanical Engineering
- Degree: M.S.
- Kansas State University,
1963
- Major: Mechanical Engineering
- Degree: B.S.
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Research Interests
- Vortical flows, non-equilibrium phenomena, space systems, Mars resources
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Licensures and Certifications
- Professional Engineer
- Sponsoring Organization: Commonwealth of Virginia
- Date Obtained: 1976-07-01
- Expiration Date: 2014-05-31
- Secret Clearance
- Date Obtained: 2002-01-01
- Expiration Date: 2002-12-31
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Expertise
- Aerospace Engineering
- Space Systems Engineering/ Mars Exploration / Wright Brothers' Flyers / Airplane Wake Hazards / Extraterrestrial Resources
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Book Chapters
- Ash, R. L., and Viskanta, R. (2000). Microgravity Research in Support of Technologies for the Human Exploration and Development of Space and Planetary Bodies.. Washington D.C.: Space Studies Board, National Research Council, National Academy Press.
- Ash, R. L., and Khorrami, M. R. (1995). "Vortex Stability" in Fluid Vortices. (pp. Chapter VIII pgs 317-372). Dordrecht: Kluwer Academic Publishers.
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Articles
- Ash, R. L., Zardadkhan, I., and Zuckerwar, A. J. (2011). The influence of pressure relaxation on the structure of an axial vortex. Physics of Fluids, 23, (pp. 12 pages).
- Zuckerwar, A. J., and Ash, R. L. (2009). Volume viscosity in fluids with multiple dissipative processess. Physics of Fluids
- Ash, R. L. (2006). Response to ‘Comment by Markus Scholle on the article: ‘Variational approach to the volume viscosity of fluids. Physics of Fluids, 18, (pp. 3).
- Zuckerwar, A. J., and Ash, R. L. (2006). Variational approach to the volume viscosity of fluids. Physics of Fluids, 18 (047101), (pp. 10).
- Zuckerwar, A. J., Ash, R. L., Britcher, C. P., and Landman, D. (2003). An Evaluation of the Wright 1901 Glider using Full-Scale Wind Tunnel Data. Journal of Aircraft, 40 (3), (pp. 417-424).
- Miley, S. J., Ash, R. L., Hyde, K. L., Landman, D., and Sparks, A. K. (2002). Propeller Performance Tests of Wright Brothers’ ‘Bent End’ Propellers. Journal of Aircraft, 39 (2), (pp. 234-241).
- Landman, D., Blackburn, S., Ash, R. L., and Hyde, K. W. (2002). Wind Tunnel Testing of the Wright Brothers’ Model B Airfoil. Journal of Aircraft, 39 (1), (pp. 30-36).
- Sparks, A. K., and Ash, R. L. (2001). Only the Wright Stuff!. AIAA Student Journal, 38 (4), (pp. 6-9).
- Ash, R. L., and Zheng, Z. C. (1998). Numerical Simulations of Commercial Aircraft Wakes Subjected to Airport Surface Weather Conditions. Journal of Aircraft, 35, (pp. 18-26).
- Zheng, Z. C., and Ash, R. L. (1996). A Study of Aircraft Wake Vortex Behavior near the Ground. AIAA Journal, 34 (3), (pp. 580-589).
- Wu, D., Outlaw, R. A., and Ash, R. L. (1996). Extraction of Oxygen from CO2 Using Glow Discharge and Permeation Techniques. Journal fo Vacuum Science and Technology A, 14, (pp. 408-414).
- Ash, R. L., Wu, D., and Outlaw, R. A. (1994). A Study of Glow Discharge and Permeation Techniques for Extraterrestrial Oxygen Beneficiation. Advances in Space Research, 14 (6), (pp. 234-263).
- Wu, D., Outlaw, R. A., and Ash, R. L. (1993). Glow Discharge Enhanced Permeation of Oxygen through Silver. Journal of Applied Physics, 74 (8), (pp. 4990-4994).
- Ash, R. L., O'Donoghue, P. J., Chambers, E. J., and Raney, J. P. (1993). A Methodology for Selective Removal of Orbital Debris. 43rd World Space Congress, Washington, D.C., COSPAR Paper, Advances in Space Research, 13 (8), (pp. 243-247).
- Huang, J., Ho, M. T., and Ash, R. L. (1992). Expert Systems for Automated Maintenance of a Mars Oxygen Production System. Journal for Spacecraft and Rockets, 29 (4), (pp. 425-431).
- Bandyopadhyay, P. R., Riester, J. E., and Ash, R. L. (1992). Helical Perturbation Device for Cylinder Wing Vortex Generators. AIAA Journal, 30 (4), (pp. 988-992).
- Albertson, C. W., and Ash, R. L. (1991). Compressible Equilibrium Turbulent Boundary Layers at Nonadiabatic Wall Conditions. AIAA Journal, 29 (10), (pp. 1573-1580).
- Spall, R. E., Gatski, T. B., and Ash, R. L. (1990). The Structure and Dynamics of Bubble type Vortex Breakdown. Proceedings of the Royal Society of London, Series A, 429, (pp. 613-637).
- 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. 206-229).
- Ramohalli, K. N., Lawton, E. A., and Ash, R. L. (1989). Recent Concepts in Missions to Mars: Extraterrestrial Processes. Journal of Propulsion and Power, 5, (pp. 181-187).
- Daryabeigi, K., Ash, R. L., and Dillon Townes, L. A. (1987). Influence of Ventilated Shrouds on the Convection Heat Transfer to a Circular Cylinder. International Journal of Heat and Mass Transfer, 30 (8), (pp. 1685-1692).
- Ramohalli, J. N., Dowler, W. L., French, J. R., and Ash, R. L. (1987). Novel Extraterrestrial Processing for Space Propulsion. Acta Astronautica, 15 (5), (pp. 259-273).
- Ramohalli, K., Dowler, W. L., French, J., and Ash, R. L. (1987). Some Aspects of Space Propulsion with Extraterrestrial Resources. Journal of Spacecraft and Rockets, 24 (3), (pp. 236-244).
- Lin, J. C., and Ash, R. L. (1986). Wall Temperature Control of Low Speed Body Drag. Journal of Aircraft, 23 (1), (pp. 93-94).
- Pandey, D. K., Dillon Townes, L. A., and Ash, R. L. (1985). Response Time Correlations for Platinum Resistance Thermometers. ISA Transactions, 31, (pp. 587-597).
- Cuda Jr., V., and Ash, R. L. (1984). Development of a Uniaxial Ice Tensile Specimen for Low Temperature Testing. Cold Regions Science and Technology, 9, (pp. 47-52).
- Ash, R. L., Stancati, M. L., Niehoff, J. C., and Cuda Jr., V. (1981). Outer Planet Satellite Return Missions Using In Situ Propellant Production. XXXI Congress, International Astronautical Federation, IAF Paper No. 80—G 296. Acta Astronautic, 8, (pp. 511-526).
- Wilkins, C. A., and Ash, R. L. (1980). An Apparatus for Measuring the Thermal Conductivity of Cast Insulation Materials. Review of Scientific Instruments, 51 (7), (pp. 998-1000).
- 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).
- Drummond, J. P., Jones, R. A., and Ash, R. L. (1976). Effective Thermal Property Improves Phase Change Paint Data. AIAA Journal, 14 (10), (pp. 1476-1478).
- Weinstein, L. M., Fischer, M. C., and Ash, R. L. (1975). Experimental Verification of Turbulent Skin Friction Reduction with Compliant Walls. AIAA Journal, 13 (7), (pp. 956-958).
- Ash, R. L., Dowler, W. L., and Varsi, G. (1974). Feasibility of Rocket Propellant Production on Mars. Acta Astronautica, 5, (pp. 705-724).
- Ash, R. L., and Crossman, G. R. (1971). Influence of Temperature Dependent Properties on a Step Heated Semi Infinite Solid. Trans. ASME, Series C, Journal of Heat Transfer, 93, (pp. 250-253).
- Ash, R. L., and Heinbockel, J. H. (1970). Note on Heat Transfer in Laminar, Fully Developed Pipe Flow with Axial Conduction. Zeitschrift fur Angewandt Mathematik und Physik, 21 (2), (pp. 266-269).
- Ash, R. L., Weller, W. T., and Wright, R. E. (1970). Sources of Error in Vacuum Calibration of Heat Flux Sensors. Review of Scientific Instruments, 41 (7), (pp. 1112-1114).
- Ash, R. L. (1969). An Analysis of the Response Characteristics of Thin Foil Heat Flux Sensors. AIAA Journal, 7 (12), (pp. 2332-2335).
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Presentations
- Mars exploration from a fixed base — A driver for Heavy Entry Descent and Landing Capabilities
- Conference Name:
- Location: Newport News, VA
- Date: August 19, 2011
- Authors/Presenters:
Ash, R. L.
- Honor Societies
- NASA Group Achievement Award
- NASA Tech Briefs
- Outstanding Faculty, Old Dominion University
- Who's Who in Engineering
- Pletta Medal, Virginia Society of Professional Engineers
- Professional Engineer of the Year in Tidewater, Virginia
- Charles T. Main Award, American Society of Mechanical Engineers
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Contracts, Grants and Sponsored Research