Workshop Outline

Module 1: Key Concepts of Thermofluids
Module 2: Compressible Flow Functions
Module 3: Isentropic Flows
Module 4: Flows with Gradual Changes in Entropy - Fanno and Rayleigh Flows
Module 5: Flows with Abrupt Changes in Entropy - Normal Shocks
Module 6: Pressure and Temperature Changes in a Generalized Vortex
Module 7: Compressible Flow Network Modeling
Module 8: Design Examples and Discussions


Fee: $300.00 - Participation fee

Registration will be limited to 30 participants.

Five complimentary, autographed copies of Fluid Mechanics: An Intermediate Approach (2015) will be distributed among workshop attendees using a random draw.
Physics-Based Compressible Flow and Network Modeling for Design Applications

Physics-Based Compressible Flow and Network Modeling for Design Applications

April 13, 2019
Westin Las Vegas Hotel & Spa, Las Vegas, NV, USA


Nonisentropic compressible flows are ubiquitous in many mechanical, chemical, and aerospace engineering applications, including gas turbines in their inlet systems, compressors, combustors, turbines, and exhaust systems. One-dimensional treatment of these flows forms the basis for most preliminary/conceptual designs. They are, however, generally counter-intuitive. For example, it defies common sense that the wall friction accelerates a subsonic compressible flow in a constant-area duct with or without heating. This workshop will provide a comprehensive review and reinforcement of the key concepts of one-dimensional compressible flows with simultaneous area change, friction, heat transfer, and rotation, which is seldom found in a textbook. In addition to the key concepts of thermofluids such as stream thrust, impulse pressure, rothalpy, mass flow functions, impulse functions, and normal shock function, this workshop will present an easy method to compute pressure and temperature changes in a generalized vortex in both rotor and stator reference frames. The workshop will conclude with a design-friendly overview of a compressible flow network featuring internal choking and normal shocks along with robust solution methods. A number of design-relevant examples will also be solved in the workshop. It behooves CFD engineers to use the unique foundation developed in this workshop as a prerequisite for all their 3-D CFD analyses, including physics-based interpretation of boundary conditions and computed results for design applications.


  • Will develop a unique intuitive understanding of isentropic and nonisentropic compressible flows, including the coupled effects of area change, friction, heat transfer, and rotation
  • Will develop a strong foundation in the physics-based thermofluids design of various engineered components
  • Will be more knowledgeable in developing physics-based compressible flow models and applying accurate boundary conditions
  • Will be more knowledgeable in correctly interpreting results of their compressible flow design analyses
  • Will develop skills to hand-calculate compressible flow results to perform sanity-checks of predictions by design tools as well as validate these tools during their development
  • Will improve participant's engineering productivity with reduced design cycle time


The course is appropriate for anyone who has an undergraduate understanding of measurements. The information presented will be relevant to anyone interested in a better understanding of the distinctions between uncertainty and error, or random and bias error sources. We will discuss how to interpret uncertainty information and move beyond uncertainty procedures. A broader class of error sources will be discussed than in a typical treatment (e.g. uncertainty stemming from material property data), as well as correlation between error sources.

Course Instructors

Takaniki Communications, LLC

Dr. Bijay Sultanian is an international authority in gas turbine heat transfer, secondary air systems, and Computational Fluid Dynamics (CFD). Dr. Sultanian is Founder & Managing Member of Takaniki Communications, LLC, a provider of high-impact, web-based, and live technical training programs for corporate engineering teams. Dr. Sultanian is also an Adjunct Professor at the University of Central Florida, where he has been teaching graduate-level courses in Turbomachinery and Fluid Mechanics since 2006. He has instructed several workshops at ASME Turbo Expo since 2009. During his 30+ years in the gas turbine industry, Dr. Sultanian has worked in and led technical teams at a number of organizations, including Allison Gas Turbines (now Rolls-Royce), GE Aircraft Engines (now GE Aviation), GE Power Generation (now GE Power & Water), and Siemens Energy (now Siemens Power & Gas). He has developed several physics-based improvements to legacy heat transfer and fluid systems design methods, including new tools to analyze critical high-temperature components with and without rotation.