PDF Publication Title:
Text from PDF Page: 004
described in reference 11 was undertaken primarily to obtain overall perform ance and an internal loss breakdown. rotor blading itself were obtained, but the results of rotor inlet and exit surveys reported for one operating condition are the basis for this limited comparison with the DENTON code. A rotor-inlet survey of absolute flow angle and absolute total pressure was made just upstream of the rotor leading edge (station 3 of ref. 11). surveys were made over 2 stator vane passages and at 11 axial positions from No detailed flow measurements within the The, hub to shroud. For each axial position, data were taken at 11 circumferential positions and arithmetically averaged. rotor-inlet flow angles and the mass-averaged absolute flow angle of 73.60 from the experiment. The flow angles at the hub and shroud walls shown inthe distribution are those required to match continuity. Similarly, a rotor-exit survey was taken about 2.B cm downstream of the rotor trailing edge (station 4 of ref. 11). These data were taken at 11 radial locations, all at one circumferential position. The radial distribution of absolute flow angle and total pressure ratio, measured at this location, are presented infigure 3. A summary of the overall rotor conditions is given in table I. Even though mass flow is not an input to the DENTON code, it is given for comparison purposes later. The experimental conditions-used as inputs to the inviscid code were for-corrected design speed, temperature, and pressure ratio. The rotor-inlet total pressure reflects the 6.3-percent measured loss due to the stator and vaneless space. INVISCID COMPUTATION The three-dimensional inviscid DENTON code was used to analyze the radial rotor. The stator was not included inthis analysis. The code, developed by Denton, uses an explicit time marching method for turbomachinery flow calcula tion. The code solves the Euler equations infinite-volume form using an opposed-difference scheme inwhich changes inthe fluxes of mass, momentum, and energy move downwind and pressure moves upwind. A two-level multigrid feature of the code was used to reduce computation time, and variable time steps were also used to reduce computation time while maintaining stability. The computational mesh for two blade-to-blade surfaces and on the merldi onal plane are shown in figures 4 and 5, respectively. The number of grid lines used are 13 in the blade-to-blade direction (I = 1 on the suction sur face, I = 13 on the pressure surface), 73 in the stream-wise direction (3 = I at upstream boundary, 3 = 73 at downstream boundary), and 21 in the hub-to shrouddirection(K=1onthehubsurfaceandK=21onthetip). Asindi cated in figure 5, the leading edge is at 3 = 12, the trailing edge at 3 = 60, station3ataboutJ=9,andstation4at3= 73. Nonuniformgridspacing was used inall three directions. was used to get higher resolutions near the leading and trailing edges. addition, this feature was used to'position the initial upstream grid at any desired location with a selected number of othogonal grid lines, and to posi tion the final downstream grid where the experimental data were measured so that the Denton outputs could be directly compared with the experimental results at station 4. Figure 2 shows the distribution of The packing of quasi-othogonal mesh lines In 3PDF Image | 3-D Inviscid Analysis of Radial Turbine Flow
PDF Search Title:
3-D Inviscid Analysis of Radial Turbine FlowOriginal File Name Searched:
19860000550.pdfDIY PDF Search: Google It | Yahoo | Bing
NFT (Non Fungible Token): Buy our tech, design, development or system NFT and become part of our tech NFT network... More Info
IT XR Project Redstone NFT Available for Sale: NFT for high tech turbine design with one part 3D printed counter-rotating energy turbine. Be part of the future with this NFT. Can be bought and sold but only one design NFT exists. Royalties go to the developer (Infinity) to keep enhancing design and applications... More Info
Infinity Turbine IT XR Project Redstone Design: NFT for sale... NFT for high tech turbine design with one part 3D printed counter-rotating energy turbine. Includes all rights to this turbine design, including license for Fluid Handling Block I and II for the turbine assembly and housing. The NFT includes the blueprints (cad/cam), revenue streams, and all future development of the IT XR Project Redstone... More Info
Infinity Turbine ROT Radial Outflow Turbine 24 Design and Worldwide Rights: NFT for sale... NFT for the ROT 24 energy turbine. Be part of the future with this NFT. This design can be bought and sold but only one design NFT exists. You may manufacture the unit, or get the revenues from its sale from Infinity Turbine. Royalties go to the developer (Infinity) to keep enhancing design and applications... More Info
Infinity Supercritical CO2 10 Liter Extractor Design and Worldwide Rights: The Infinity Supercritical 10L CO2 extractor is for botanical oil extraction, which is rich in terpenes and can produce shelf ready full spectrum oil. With over 5 years of development, this industry leader mature extractor machine has been sold since 2015 and is part of many profitable businesses. The process can also be used for electrowinning, e-waste recycling, and lithium battery recycling, gold mining electronic wastes, precious metals. CO2 can also be used in a reverse fuel cell with nafion to make a gas-to-liquids fuel, such as methanol, ethanol and butanol or ethylene. Supercritical CO2 has also been used for treating nafion to make it more effective catalyst. This NFT is for the purchase of worldwide rights which includes the design. More Info
NFT (Non Fungible Token): Buy our tech, design, development or system NFT and become part of our tech NFT network... More Info
Infinity Turbine Products: Special for this month, any plans are $10,000 for complete Cad/Cam blueprints. License is for one build. Try before you buy a production license. May pay by Bitcoin or other Crypto. Products Page... More Info
CONTACT TEL: 608-238-6001 Email: greg@infinityturbine.com (Standard Web Page)