Education background

PhD, Mechanical Engineering, “Convective Heat Transfer in Louvered Solar Collectors,” Purdue University, West Lafayette, Indiana, 1982

MS, Nuclear Engineering, “Transient Development of a Two-Phase Jet,” Purdue University, West Lafayette, Indiana, 1977

BS, Mechanical Engineering, Magna Cum Laude, Bucknell University, Lewisburg, Pennsylvania, 1975

Experience

Professor, Tsinghua University, Beijing, China 2004 - present

Associate Professor, Tsinghua University, Beijing, China 1996 – 2004

Visiting Professor, Tsinghua University, Beijing, China 1993 - 1996

Post-Doctorate Research Fellow, Tsinghua University, Beijing, China, 1991 - 1993

Assistant Professor, Lafayette College, Easton, Pennsylvania 1983 - 1988

Concurrent Academic

English Editor, Tsinghua Science and Technology 1996 – present

English Editorial Consultant 1995 – present

Areas of Research Interests/ Research Projects

Convection heat and mass transfer

Boiling heat transfer

Hydrogen safety

Flow and heat transfer in porous media

CFD methods

Heat and mass transfer characteristics in agricultural buildings

Research Status

a. Bubble dynamics during nucleate pool boiling，Tsinghua University School of Mechanical Engineering Research Funds, 2001.1-2002.12，Principle Investigator.

b. Flow and heat transfer mechanics around a bubble in microgravity, Tsinghua University Thermal Engineering Department Fundamental Research Fund, 2000.7-2003.6，Principle Investigator.

c. X-ray measurements of temperature distributions around a bubble during nucleate boiling，Tsinghua University Fundamental Research Fund, 2001.11-2003.10，Principle Investigator

d . Microscopic Understanding of Nucleation and Bubble Dynamics During Nucleate Boiling，National Natural Science Foundation of China, 2004.1-2007.12，Principle Investigator.

e. Mechanisms Governing Interfacial and Structure Effects in Microscale Transport Phenomena，National Natural Science Foundation of China, 2007－2010, Key Researcher.

f. Physical Mechanisms Driving the Nucleation and Initial Growth of Microbubbles During Flow Boiling in Microchannels, National Natural Science Foundation of China, 2009.1-2011.12，Principle Investigator.

g. Key Questions in Predicting Accidents involving Dangerous Chemicals, 2011CB706904, National Basic Research Program of China (“973” Project), 2011.1-2015.12，Key Researcher.

h. Analytical and Experimental Investigation and modeling of Very High Pressure Hydrogen Leaks, National Natural Science Foundation of China, 2015.1-2018.12，Principle Investigator.

Honors And Awards

Chinese Bureau of Foreign Experts' Friendship Award, 1994

Tsinghua University's Friendship Award, 1994

Tsinghua University's Friendship Award, 1995

Tau Beta Pi Fellow

Purdue University Fellow

Best Paper Award: International Conference on Integration and Commercialization of Micro and Nanosystems, 2007.

Tsinghua University teaching award, 1st Class, 1996-1998

Academic Achievement

Selected papers:

Christopher, D.M., Wang H., Peng, X.F., Numerical Analysis of the Dynamics of Moving Vapor Bubbles, International Journal of Heat and Mass Transfer, V. 49, No. 19-20, pp. 3626-3633, 2006.

Christopher, D.M., Wang, H., Peng, X.F., Garimella, S.V., Dynamics of Bubble Motion and Bubble Top Jet Flows from Moving Vapor Bubbles on Microwires, Journal of Heat Transfer, 128 (12), pp. 1345-1346, 2006.

Christopher, D.M., Jiang J., Bubble sweeping and interactions on wires during subcooled boiling, International Journal of Heat and Mass Transfer, v 52, n 21-22, p 5020-5028, 2009.

Tong, G.H., Christopher, D. M., Li, B., Numerical modelling of temperature variations in a Chinese solar greenhouse, Computers and Electronics in Agriculture, 68 (2009) 129–139.

Bi, J.L., Lin, X.P., Christopher, D.M., Effects of Bubble Coalescence Dynamics on Heat Flux Distributions under Bubbles, AICHE Journal, v 59, n 5, p 1735-1745, 2013.

Bi, J.L., Lin X.P., Christopher, D.M., Li, X.F., Analysis of coalescence phenomena on microheaters at two surface superheats, International Journal of Heat and Mass Transfer, 67, 798–809, 2013.

Coulibaly, A, Bi, J.L., Lin, X.P. Christopher, D.M., Effect of Bubble Coalescence on the Wall Heat Transfer During Subcooled Pool Boiling, International Journal of Thermal Sciences, v 76, p 101-109, 2014.

Bi, J.L., Christopher, D.M., Lin X.P., Li, X.F., Effects of nucleation site arrangement and spacing on bubble coalescence characteristics, Experimental Thermal and Fluid Science, v 52, pp 116–127, 2014.

Tong G.H., D.M. Christopher, R. Zhao, J. Wang, Effect of location and distribution of insulation layers on the dynamic thermal performance of Chinese solar greenhouse walls, Applied Engineering in Agriculture, V 30 (3), pp. 457-469, 2014.

Bi, J.L., Vafai, K., Christopher, D.M., Heat transfer characteristics and CHF prediction in nanofluid boiling, International Journal of Heat and Mass Transfer, 80, 256–265, 2015.

Bi J.L., Li X.F., Christopher, D.M., Huang Y.P., Subcooling Effect on Bubble Coalescence and Heat Transfer in Pool Boiling, Journal of Engineering Thermodynamics, 36 (8), , 2015.

Liu, W., Christopher, D.M., Dispersion of Hydrogen Leaking from a Hydrogen Fuel Cell Vehicle, International Journal of Hydrogen Energy, 40 (46), pp. 16673-16682, 2015.

Li, X.F., Hecht, E.S., Christopher, D.M., Validation of Reduced Order Models for Subsonic and Underexpanded Hydrogen Jets, International Journal of Hydrogen Energy, 41, 2, pp 1348–1358, 2016.

Li, X.F., Christopher, D.M., Hecht, E.S., Ekoto, I.W., Comparison of two-layer model for hydrogen and helium jets with notional nozzle model predictions and experimental data for pressures up to 35 MPa, International Journal of Hydrogen Energy, 42(11), 7457-7466, 2017.