Dr. David Helmer

Dr. David Helmer, Ph.D

​​Assistant Professor

Program Manager – Johns Hopkins University Applied Physics Laboratory

david.helmer@westpoint.edu

Biography


Dr. David Helmer received his BS in Mechanical Engineering from the Johns Hopkins University (2006), and his MS (2008) and PhD (2011) from Stanford University.  He majored in Mechanical Engineering and his graduate research focused on measurement of supersonic flows. He worked at General Electric Global Research as a Heat Transfer Research Engineer, primarily focusing on experimental research to inform jet engine cooling design. While at GE, he volunteered as an instructor at USMA. David subsequently worked at the Boston Consulting Group before joining the Johns Hopkins University Applied Physics Laboratory, where he is currently an Assistant Group Supervisor for a team focused on Human-Machine Engineering. David specializes in advanced experimental methods and data processing. He has been a part-time Assistant Professor at USMA since 2017.

Publications & Presentations


Journal Publications
Benson, M., Bindon, D., Cooper M., Davidson, F.T., Duhaime, B., Helmer, D., Woodings, R.,
Van Poppel, B., Elkins, C., and Clark, J. "Detailed Velocity and Heat Transfer Measurements in an Advanced Gas Turbine Vane Insert Using MRV and IR Thermometry." Journal of
Turbomachinery, Paper No. Turbo-21-1113, American Society of Mechanical Engineers, 2021.

Davidson, F.T., Helmer, D., Parker, C., Cox, L., Kahn, K., Elkins, C., Clark, J., Humbert, N., Van Poppel, B., and Benson, M. “Detailed Velocity and Heat Transfer Measurements of an Advanced Insert for Impingement Cooling.” International Journal of Heat and Mass Transfer, 2021.

Bermejo-Moreno, I., Campo, L., Larsson, J., Bodart, J., Helmer, D., and Eaton, J. “Confinement Effects in Shock Wave/Turbulent Boundary Layer Interactions Through Wall-Modelled LargeEddy Simulations.” Journal of Fluid Mechanics 758, pp.5-62 (2014).

Helmer, D.B., Campo, L.M., and Eaton, J.K. “Three-dimensional features of a Mach 2.1
shock/boundary layer interaction.” Experiments in Fluids, Volume 53, Issue 5, pp.1347-1368,
November 2012.

Su, L.K., Helmer, D.B and Brownell, C.J., "Quantitative planar imaging of turbulent buoyant jet
mixing", Journal of Fluid Mechanics 643, pp. 59-95 (2010).

Conference Presentations/Papers and Other Publications

Presenter:
Helmer, D., and Hoefler, F. “Steady IR Methodology for Leading Edge Impingement
Measurements.” Presented at ASME Turbo Expo 2015, ASME paper GT2015-42643.

Dyson, T., Helmer, D., and Tallman, J. “Large-Scale Simulation of Clocking Impact of 2D
Combustor Profile on High Pressure Turbine.” Presented at ASME Turbo Expo 2014, ASME
paper GT2014-25883.

Helmer, D. “Modified Transient IR Methodology for Leading Edge Impingement
Measurements.” Presented at ASME Turbo Expo 2014, ASME paper GT2014-25884.

Siekman, M., Helmer, D., Hwang, W., Laskowski, G., Tan, E.T., and Natsui, G. “A Combined
CFD/MRV Study of Flow Through A Pin Bank.” Presented at ASME Turbo Expo 2014, ASME
paper GT2014-25350

Helmer, D.B., Campo, L.M., and Eaton, J.K. “Sensitivity of a shock-boundary layer interaction to geometric perturbations.” TSFP7 Conference Paper 7B1P (2011).

Helmer, David and Eaton, John. “Techniques for PIV-CFD Comparisons in a Shock-Boundary
Layer Interaction.” Presented at the 63rd Annual Meeting of the APS Division of Fluid Mechanics (2010).

Helmer et al. “Upstream Boundary Condition Sensitivity of the Shock-Boundary Layer
Interaction.” Presented at the 62nd Annual Meeting of the APS Division of Fluid Mechanics
(2009).

Helmer, D.B., and Su, L.K. "Imaging of turbulent buoyant jet mixing". ASME Paper
IMECE2006-16365 (2006).

Contributor:
Humbert, N., Galante, J., Davidson, F.T., Helmer, D., Elkins, C., Tamm, G., and Benson, M.
“Velocity and Heat Transfer Studies of an Impinging Jet Using Magnetic Resonance Velocmetry and Infrared Thermography.” ASME 2021 International Mechanical Engineering Congress and Exposition, 2021.

Robinson, J., Kopeikin, A., and Helmer, D. "Kriging Variance and Human Factors to Steer an
Unmanned Aircraft System Swarm to Survey a Radiation Field." In AIAA Scitech 2021 Forum, p. 0809. 2021.

Benson, M., Chung, D., Fuhrman, G., Helmer, D., Homan, T., Mooradian, L., Rhee, J., Elkins,
C., and Banko, A. "Three-Dimensional Concentration and Velocity Measurements of a Pulsatile Contaminant Release in a Model of Oklahoma City." In ASME International Mechanical Engineering Congress and Exposition, vol. 84584, p. V010T10A010. American Society of Mechanical Engineers, 2020.

Benson, M., Bindon, D., Cooper M., Davidson, F.T., Duhaime, B., Helmer, D., Woodings, R.,
Van Poppel, B., Elkins, C., and Clark, J. "Detailed Velocity and Heat Transfer Measurements in an Advanced Gas Turbine Vane Insert Using MRV and IR Thermometry." In Turbo Expo: Power for Land, Sea, and Air, vol. 84164, p. V07AT15A016. American Society of Mechanical
Engineers, 2020.

Benson, M., Helmer, D., Van Poppel, B., Duhaime, B., Bindon, D., Cooper, M., Woodings, R.,
and Elkins, C. "Detailed Three-Dimensional Velocity Field Measurements of a Complex Internal Cooling Flow Within a Gas Turbine Vane." In ASME International Mechanical Engineering Congress and Exposition, vol. 59445, p. V007T08A011. American Society of Mechanical Engineers, 2019.

Benson, Michael J., Arnaud Ivanovsky, Mattias Cooper, Gunnar O. Tamm, David B. Helmer,
Bret P. Van Poppel, and Briana Fisk. "Experimental study of a turbulent impinging jet in an
undergraduate heat transfer laboratory." In ASTFE Digital Library. Begel House Inc., 2019.

Irhoud, A., Benson, M., Verhulst, C., Van Poppel, B., Elkins, C., and Helmer, D. “Magnetic
Resonance Velocimetry Analysis of an Angled Impinging Jet” .” 69th Annual Meeting of the APS Division of Fluid Mechanics (2016).

Dyson, T., Winka, J., and Helmer, D. “Conjugate Scaling in the Presence of Bore Cooling.”
ASME Turbo Expo 2015, ASME paper GT2015-43625.

Reibman, B., Rodebaugh, G., Helmer, D., and Benson, M. “Steady and Time Resolved Heat
Transfer Simulations of a Single Impinging Jet.” 66th Annual Meeting of the APS Division of
Fluid Mechanics (2013).

Bermejo-Mereno, I., Larsson, J., Campo, L.M., Bodart, J., Helmer, D.B., and Eaton, J.K. “Wall modeled Large-Eddy Simulations of Shock/Turbulent Boundary-Layer Interactions in a Low Aspect-Ratio Duct.” 8th International Symposium on Turbulence and Shear Flow Phenomena, Poitiers, France, August 2013.

Campo, L.M., Helmer, D.B., and Eaton, J.K. “PIV Investigation of Spanwise Variation in
Incident Shock Boundary Layer Interactions.” 8th International Symposium on Turbulence and
Shear Flow Phenomena, Poitiers, France, August 2013.

Bermejo-Moreno, I., Larsson, J., Campo, L., Bodart, J., Emory, M., Palacios, F., Helmer, D.,
Iaccarino, G., and Eaton, J. “Multi-fidelity numerical simulations of shock/turbulent-boundary layer interaction in a duct with uncertainty quantification.” CTR Annual Research Briefs 2012, pp.67-79, December 2012

Bermejo-Moreno, I., Larsson, J., Campo, ., Bodart, J., Helmer, D., Ham, F., and Eaton, J.K.
“Wall-modeled Large-eddy Simulations of Shock/Turbulent Boundary Layer Interaction in a
Duct.” .” 65th Annual Meeting of the APS Division of Fluid Mechanics (2012).

Campo, L.M., Helmer, D.B., and Eaton, J.K. “Shock Boundary Layer Interaction Sensitivity to
Upstream Geometric Pertrurbations.” 65th Annual Meeting of the APS Division of Fluid
Mechanics (2012).

Campo, L.M., Helmer, D.B., and Eaton, J.K. “Validation Experiment for Shock-Boundary Layer
Interactions: Sensitivity to Upstream Geometric Perturbations.” AIAA Paper 2012-1440 (2012).

Bermejo-Moreno, I., Larsson, J., Campo, L., Bodart, J., Vicquelin, R., Helmer, D., and Eaton, J. “Wall-modeled large-eddy simulation of shock/turbulent-boundary-layer interaction in a duct.” CTR Annual Research Briefs 2011, pp. 49-62, December 2011.

Su, L.K., Helmer, D.B., and Brownell, C.J. “Quantitative measurement of scalar dissipation rates in turbulent jets using planar laser imaging.” 61st Annual Meeting of the APS Division of Fluid Mechanics (2008).

Helmer, David, Cody Brownell, and Lester Su. "Experimental investigations of mixing in
turbulent jets with buoyancy." In 45th AIAA Aerospace Sciences Meeting and Exhibit, p. 1314.
2007.

Su, L.K., Helmer, D.B., and Denk, L.M. “Effects of buoyancy on flow evolution in momentum driven turbulent jets.” 59th Annual Meeting of the APS Division of Fluid Mechanics (2006).

Helmer, D.B., and Su, L.K. "Imaging of turbulent buoyant jet mixing". AIAA Paper 2006-0309
(2006).

Su, L.K., and Helmer, D.B. “Experimental investigations of buoyancy effects in turbulent jet
mixing.” 58th Annual Meeting of the APS Division of Fluid Mechanics (2005).