Dr. David P. Schmidt

210 B, Marston Hall
University of Massachusetts, Amherst, MA 01003-2210,
Phone: (413) 545-1393
Fax: (413) 545-1027
Email: schmidt at ecs dot umass dot edu



Doctoral Candidates

Mateus Dias RibeiroMateus Dias Ribeiro

Office: 212 Marston

Research Interests:My research focus is on the modeling of turbulent flows of interest for engineering, particularly the reactive multi-phase flows associated with state-of-the-art internal combustion engines. Throughout my Masters and now during my PhD work, I have been using the open-source OpenFOAM CFD toolbox to develop solvers to investigate flow characteristics of gasoline direct injected (GDI) engines and other related phenomena associated with that technology, such as fuel-injection and combustion.

Hannah Johlas

Office: 212 Marston Hall

Research interests: My research focuses on computational fluid dynamics applied to offshore wind energy. In particular, I study breaking wave loads on fixed-bottom offshore wind turbines, as well as wake effects in floating offshore wind farms. CFD tools used include the commercial code CONVERGE as well as SOWFA, an OpenFOAM-based tool developed by the National Renewable Energy Lab.

Peetak MitraPeetak Mitra

Office: 212 Marston Hall
Research Interests: My research focuses primarily on the physics of liquid sprays -- atomization, mixing etc and is part of the Sandia National Laboratory led Spray Combustion Consortium ( My current focus has been on the development and implementation of a mixing-limited physics based model for predicting key spray statistics in an effort to develop a more reliable and robust predictive tool for spray modeling and it has shown great promise thus far. This model has been implemented in commercial CFD code CONVERGE. My interests also include exploring the awesome powers of neural nets, and leveraging Deep Learning in developing predicting tools for modeling fluids.

Chinmoy MohaptraChinmoy Mohapatra

Office: 212 Marston Hall
Reseach Interests: My research involves the study of computational modeling of superheated liquid jet atomization (flash boiling) for a gasoline direct injection(GDI) application. My focus has been on developing new models to simulate the needle closure event and develop a new approach for the coupling of the Eulerian and Lagrangian models for spray modeling. These models have shown promising results under non-flasing and flash boiling condition in GDI-injector. The needle closure model has also enabled us to simulate multiple injection events in a single simulation. On the sidelines, I also co-lead the "internal flow simulation for GDI injector" topic for the Engine Combustion Network(ECN) workshops, ECN-5.0 and ECN-6.0.

Masters Candidates

Gabriel Jacobsohn

Office: 212 Marston Hall


Research Interests : I am interested in modeling the internal flow and near-field external sprays of modern fuel injection systems.  Such flows are highly complex due to the turbulence and phase change, as well as the sheer intricacy of the nozzle geometries used today.  The impact of these complex internal flow features on the far-field spray is mostly lost by traditional Lagrangian particle tracking methods, rendering our Eulerian-Eulerian approach attractive for these regions.  I primarily simulate Gasoline Direct Injection (GDI) injectors and self-impinging like doublet injectors (used in liquid fueled rocket combustors).  Recently, my focus has been on incorporating high fidelity X-Ray tomography injector geometry scans into LES computations with dynamic mesh motion.  I also support projects sponsored by the U.S Air Force's Office of Scientific Research.

Undergraduate Students

Michael Frey imageMichael Frey


My research currently involves the study of flash evaporation of




Jennifer TaylorJennifer Taylor