Positions
My research group is recruiting two fully-funded Ph.D. students through Research Assistantships in the Department of Petroleum Engineering at the University of Tulsa. The expected start date is Fall 2025. Benefits include a monthly stipend, a full tuition waiver, and health and dental insurance coverage, per the policies of the university and the Department of Petroleum Engineering.

Research directions
Multiphase flow, transport, phase change, and reactions in fractured and porous media (such as oil and gas reservoirs, aquifers, soils, biological tissues, etc.), fluid-driven fracture mechanics, and rheology of complex fluids and soft materials (such as polymers, gels, foams, colloids suspensions, etc.). Applications include fossil energy recovery, geothermal energy systems, soil remediation, geological sequestration and storage, and more.

Responsibilities
Design and conduct experiments in natural porous media and meticulously designed artificial model systems
Conduct visualization, measurement, and analysis of the dynamics in the model systems
Measure and analyze the rheological, interfacial, and acoustic properties of complex fluids and soft materials such as polymers, foams, gels, and colloid suspensions in bulk phase and within micron confinements.
Career opportunities
Summer internships in academic laboratories and the industry
Research/academic positions in the universities and national laboratories
Oil and gas industry
Qualifications
B.S. and/or M.S. degree in engineering, sciences, or a relevant field with a minimum GPA of 3.0/4.0

Meet the minimum test requirements for graduate admission: TOFEL > 80 or IELTS > 6.5, GRE recommended but can be waived

Good written and communication skills, eager to collaborate

Self-motivated and dedicated to research

Experience in microfabrication, microfluidics, and microscopy is a bonus

Experience in particle imaging velocimetry (PIV), and 3D printing is a bonus

Experience in computational fluid dynamics (CFD) simulation is a bonus

To apply, please email me (yujingdu@seas.harvard.edu) and send the following three materials
CV or resume

Unofficial transcript

Names and contact information (email address is preferred) of two to three references