ºÝºÝߣ

Editor's Notes

• #2: For webcast only: 10:25 AM ¨C Thank you for joining us for the this. We will begin in about 5 minutes. 10:30 AM ¨C Thank you for joining us for the this webcast. We will begin in just a few minutes. 10:35 AM ¨C Good day to all of you, and thank you for being here to see Flow Simulation ¨C Fluid Flow Analysis Inside SolidWorks. Please note that this webcast is not intended to be a training session but more of a tips and tricks presentation. For SolidWorks training please contact your reseller.
• #3: Today we will cover a basic overview of Fluid Flow or CFD analysis and its benefits. We will also discuss why Flow Simulation is an ideal software for engineers to conduct Fluid Flow Analysis. Then we will show results from real life examples solved using Flow Simulation. After that we will demonstrate SolidWorks & Flow Simulation to show Fluid flow Analysis. Finally, we will have a few minutes of Q & A to answer questions you type in during the presentation. Let us begin with a basic overview and background. Please note we will be using Fluid flow Analysis and CFD analysis interchangeably during this presentation
• #4: To simply state, Fluid flow analysis or CFD analysis is simulation of real life fluid and heat transfer problems on the computer. Any Fluid Flow software converts these real life problems into equations and solves them numerically using the power of computers Engineers designing products that relate to flow of gas, liquid, heat transfer and forces on solids (immersed or surrounding) can greatly benefit from this technology
• #5: To simply state, Fluid flow analysis or CFD analysis is simulation of real life fluid and heat transfer problems on the computer. Any Fluid Flow software converts these real life problems into equations and solves them numerically using the power of computers Engineers designing products that relate to flow of gas, liquid, heat transfer and forces on solids (immersed or surrounding) can greatly benefit from this technology
• #6: Why should you invest in Fluid Flow Analysis Software? To improve the efficiency or performance of your designs. For example a lower drag aircraft fuselage results in lower fuel consumption or less pressure drop through an automotive intake system results in increased horsepower. To improve quality or to come up with new innovative designs. To reduce the cost and weight. For example, by optimizing the airflow in an electronics enclosure will result in a smaller, cheaper, cooling fan. Ensure safety and reliability. So our new car or dishwasher or computer doesn¡¯t break down six months after we buy it.
• #7: Computational fluid dynamics complements or in some cases even replace experimental or wind tunnel testing or prototyping. Conducting a CFD analysis is much faster than manufacturing a prototype or model, instrumenting it, testing it, and getting useful results in the end. CFD analysis is in many cases much cheaper than wind-tunnel testing. Investigating several configurations or design options is relatively simple with CFD. You can get more comprehensive results with CFD. It¡¯s easy to determine the velocity, pressure, density, temperature¡­¡­in a CFD model. To determine all of these quantities in a wind tunnel would be very difficult requiring a large assortment of instruments. tatic taps for surface pressures, multi-hole probes for pressures and velocities in the flow path, thermocouples for temperature, hot wire probes for turbulence quantities. In some cases it¡¯s not possible to measure flow properties, such as in a gas turbine or rocket exhaust due to the extreme temperatures. CFD requires less manual effort than prototyping or wind tunnel testing. Of course CFD does not totally replace experimental testing due to government safety regulations.
• #8: CFD analysis has been traditionally conducted at the end of the product development for verification purposes only. Today companies are beginning to integrate CFD into the design process to help make design changes early in the design cycle. They are realizing the benefits of early flow analysis such as: Increase the quality of their designs by validating them in progress ¨C conducting ¡°what-if¡± studies or optimizing in progress. Designs will not only be better but they will reach the market faster. Allows the dedicated analysis group to concentrate on mission critical designs or final verification.
• #9: Now that we have discussed the benefits and importance of Fluid flow Analysis, lets see why Flow Simulation is the ideal software for it.
• #10: FloWorks belongs to a new generation of fluid analysis software. It has been designed for designers and engineers and is very ease to use compared to traditional Fluid Flow analysis. Flow Simulation is the only embedded flow analysis software inside SolidWorks. It allows users to immediately create designs and analyze them without having to transfer the data to the separate analysis codes. Design engineers rarely accept the first design ¨C multiple variants of a design are created and tested to find an optimum design. Flow Simulation allows the user to create multiple variants of a design and then run the analysis ¨C the software is smart enough to understand that all material properties and the boundary conditions already designated to the first model, apply to its variants as well. Flow Simulation automatically detects the fluid region in the SolidWorks assembly. Most of other Fluid analysis software require the user to create ¡°negative¡± geometry to help the software identify the fluid regions. Flow Simulation is goal-oriented. Users need to solve a problem: for example, minimize pressure in a valve, optimize temperature in a computer cabinet or maximize mass flow thru a specific opening. Instead of having to translate goals into numerical convergence criteria, iteration numbers and relaxation factor (as in the case of CFD software) the user simply tells the software what he¡¯s interested in and starts the design process. Since Flow Simulation is so well integrated inside SolidWorks it has a fairly short learning curve. And lastly, Flow Simulation is more cost effective than other CFD software -- both in terms of monetary and human resources.
• #11: Flow Simulation has extensive set of capabilities to simulate various type of real life problems Including¡­..
• #12: Flow Simulation is accepted by market leaders and is used by many companies in different industries. Here are just few companies who are using Flow Simulation.
• #13: As you can see, fluid analysis is not only used in the traditional industries such as automotive, aerospace, and defense but also in less traditional markets such as biomedical, HVAC, machines, appliances etc.
• #14: Here are some examples of Flow Simulation in action. Additionally Flow Simulation is being used in several application in different industries such as: In Automotive industry: Flow around vehicles, Coolant flow in engine blocks and cylinder heads Flows in manifolds, valves, nozzles, pumps, catalytic converters, shock absorbers In Electronics and semiconductors Flow and thermal fields in cabinets, chassis, circuit boards Air flow around disk drives Biomedical Flow in biomedical devices, tubes and constrictions Cleansing processes Aerospace/defense External aerodynamics, Flow around submerged bodies Cabin ventilation, Flows in fuel lines and fuel tanks Machine/appliances Draft tubes Fluid flow for removal of waste material HVAC Heat exchangers and regenerators Design of heating and air conditioning distribution systems, Smoke distribution
• #15: Here are some examples of Flow Simulation in action. Additionally Flow Simulation is being used in several application in different industries such as: In Automotive industry: Flow around vehicles, Coolant flow in engine blocks and cylinder heads Flows in manifolds, valves, nozzles, pumps, catalytic converters, shock absorbers In Electronics and semiconductors Flow and thermal fields in cabinets, chassis, circuit boards Air flow around disk drives Biomedical Flow in biomedical devices, tubes and constrictions Cleansing processes Aerospace/defense External aerodynamics, Flow around submerged bodies Cabin ventilation, Flows in fuel lines and fuel tanks Machine/appliances Draft tubes Fluid flow for removal of waste material HVAC Heat exchangers and regenerators Design of heating and air conditioning distribution systems, Smoke distribution
• #16: Now we will go into a little more detail with few examples:
• #17: First example in the electronics industry
• #23: Another example in the electronics industry ¨C cooling effects due to natural convection
• #31: Third example ¨C Use of flow analysis in designing medical devices
• #38: Well ¨C Now it is time for live demonstration of Flow Simulation!
• #39: In this demonstration we will use Flow Simulation to determine the press drop across the valve. Water is entering the valve at 0.5 kg/sec Again a reminder - you will need to click on the ¡°Expand View¡± button at the bottom of the window to see the full expanded view
• #40: Several of you have typed in questions during this presentation. Hopefully we have typed back and answered all of your questions. Now I am going to read a few of these questions and answer them for the benefit of everybody.
• #41: Well we are done for the day. Thank you for attending this presentation. ¡­¡­