A MARINE GAS TURBINE PROPULSION SYSTEMS DESIGN METHOD

AN INNOVATIVE APPROACH IS PROPOSED FOR DEVELOPING A SOPHISTICATED COMPUTATIONAL FLUID DYNAMICS (CFD) PROCEDURE FOR MARINE GAS TURBINE EXHAUST DIFFUSERS AND INTEGRATING THIS PROCEDURE INTO THE GAS TURBINE DESIGN PROCESS. UNDER THE COMBINED PHASE I/PHASE II EFFORT, SCIENTIFIC RESEARCH ASSOCAITES WOULD DEMONSTRATE THE ABILITY OF ITS NAVIER-STOKES CODES TO SIMULATE EXHAUST DIFFUSER FLOW FIELD, ASSESS THE LEVEL OF ACCURACY OF THE PROCEDURE VIA COMPARISON WITH DATA AND DEVELOP A USER-FRIENDLY VERSION OF THE CODE, WHEREBY INPUT AND OUTPUT WOULD BE PERFORMED VIA INTERACTIVE PROTOCOLS IN A WORKSTATION ENVIRONMENT. DEVELOPMENT OF AN INTERACTIVE WORKSTATION I/O PROTOCOL WOULD OVERCOME A MAJOR PROBLEM ENCOUNTERED IN APPLYING SOPHISTICATED CFD CODES TO DESIGNS; THAT BEING EASE OF PROBLEM "SET-UP" AND RESULTS INTERROGATION. UNDER PHASE I, THE CODE WOULD BE APPLIED TO AN EXHAUST DIFFUSER CONFIGURATION TO DEMONSTRATE THE CAPABILITY OF THE COMPUTER CODE. UNDER PHASE II THE WORKSTATION I/O PROTOCOLS WOULD BE DEVELOPED AND THE PROCEDURE ASSESSED.