Fuel Tanks

Modeling Complex Storage Tanks

Gasoline tanks in airplanes, boats, and cars have complicated shapes that often include subcompartments. Often, there are other components (anti-slosh baffles, pumps, hydraulic boxes, etc.) submerged within these tanks, especially if the fuel is also serving a dual purpose as a coolant.

These partially-filled vessels are subject to motions which can cause fuel to shift within the tank, and perhaps flowing between subcompartments. Each wall, box, panel, and baffle represents a different thermal environment.

Now make it more complicated: ask for the fuel temperature as a function of time versus some flight or drive scenario. Actually, what is really needed is to find the minimum or maximum fuel temperature after scanning through hundreds or even thousands of mission scenarios, so an extremely fast solution is need. And, oh by the way, you need to model the entire vehicle to get the temperatures right.

FloCAD® Compartments are designed for just such challenges. The liquid surface can be shift dynamically as the vehicle turns or accelerates, or as the fuel drains. Coarsely discretized walls and other objects are "sliced" into wet and dry portions, applying customizable heat transfer relationships to each phase (liquid or gas/vapor ullage). If the fuel moves quickly between zones, even faster simulations can be made by assuming the same liquid surface everywhere within the tank.

Marine Fuel Tank: Initial, 20 minutes later, then 20 minutes after that. Total CPU time: 2 minutes on a PC.

Thermal-centric Modeling: You won't find capabilities like these anywhere else.

Click here to fetch the Marine Tank Example from our User Forum

FloCAD online training

Class times: May 2 & 4 from 10am to 2pm MT

Cost: $425

This online class will provide an introduction to fluid modeling components within FloCAD. The class will be held over a 2-day period, with daily sessions running approximately 4 hours each. The class uses a mixture of lecture, demonstrations, and self-paced tutorials to allow attendees to practice building fluid system models and interpreting results. The presentations will comprise 2 - 3 hours of each session, and the instructor will be available during the remainder of the time for questions during tutorials. Attendees must have basic working knowledge of SINDA and Thermal Desktop as these topics will not be covered but their usage is required for FloCAD.

Register here

Thermal Desktop, RadCAD, and TD Direct in-class training

Date: April 25-28, 2017, 8:00 a.m. to 5:00 p.m., daily
Location: Lakewood, CO

CRTech will be hosting introductory training for Thermal Desktop, RadCAD and TD Direct. Lecture and hands-on tutorials introduce attendees to basic Thermal Desktop and RadCAD usage and allow practice building models and interpreting results. The class will also introduce students to SpaceClaim direct modeling CAD interface and advanced meshing tools in TD Direct.

Daily Schedule

Day 1 and 2: Introduction to SINDA and Thermal Desktop
Day 3: Introduction to RadCAD
Day 4: Introduction to TD Direct
 

To learn more about this class and to register, visit our Training Page.

Anode and cathode of a flow battery

Using Sinaps? It is not too soon to get started with TD/FloCAD!

This webinar describes the process for converting from Sinaps to Thermal Desktop (TD) and FloCAD. This process includes using an exporter which works with Version 6.0 of the CRTech tool suite (expected to be released in May of 2017).

Come learn about the basics of TD/FloCAD, including many compelling features not available in Sinaps. The webinar will also cover how to manage the transition period, during which you may be using both programs simultaneously. This is also a chance to ask questions. 

If you missed this webinar, please contact us for the presentation material and recording.