Browse Publications Technical Papers 2003-01-0702

Development of a General Purpose Thermal-Hydraulic Software and its Application to Fuel Injection Systems 2003-01-0702

An advanced simulation code has been developed that models the fluid, mechanical, and thermal aspects of fuel injection and various thermal-hydraulic systems. The flow model is based on the solution of one-dimensional, unsteady, fully compressible, Navier-Stokes and energy equations. The code solves the governing equations using a finite volume formulation. In addition, the code employs a newly developed equation of state that exhibits the observed behavior of measurable fluid properties such as wave propagation speed. Furthermore, the code allows for multi-component, multi-phase treatment and takes into account pipe wall flexibility based on a quasi-dynamic thick-shell model. Multi-body dynamics are solved using an adaptive step-size Runge-Kutta based solver, and the structural thermal solution is based on a fast-executing finite element solver.
The code, GT-Fuel, has been validated using experimental measurements from both high and low-pressure fuel injection systems. The results obtained from the simulation show good agreement with the measurements. Applications of the software for modeling fuel injection and general thermal-hydraulic systems are discussed, as is the use of integrated simulation for modeling concepts such as hydraulically actuated valves.


Subscribers can view annotate, and download all of SAE's content. Learn More »


Members save up to 43% off list price.
Login to see discount.
Special Offer: With TechSelect, you decide what SAE Technical Papers you need, when you need them, and how much you want to pay.