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Blocking shematic

Blocking shematic. OUTLET. PER1. INLET. PER2. Split the block in 12 parts like in the figure on the left hand side ! At O-grid splitting select the blocks marked with blue and the edge marked with yellow ! On right hand side can be seen the blocking after the O-grid splitting .

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Blocking shematic

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  1. Blockingshematic • OUTLET • PER1 • INLET • PER2 • Split theblockin 12 partslikeinthefigureonthelefthandside! • AtO-gridsplittingselecttheblocksmarkedwithblue and theedgemarkedwithyellow! • On right handsidecan be seentheblockingaftertheO-gridsplitting. • The filledblocksareinsidetheblade, youcandeletethem.

  2. Select blocks Select edges

  3. Associate vertexes (to Points)

  4. Move vertex, single

  5. Setperiodicity Settherotationalperiodicity: Mesh, Global MeshParameters Base: 0 00 Axis: 0 0 1 Angle: 60

  6. D E Edit block, Periodic vertices C B` B A` A C` D` E`

  7. Meshparmeters Mesh, Part meshsetup (don’tforget update yourpremesh: Blocking, premeshparameters, update all)

  8. (don’tforget update yourpremesh: Blocking, premeshparameters, update all)

  9. Smoothingedgeshape UsetheBlocking, Edit edge, Link Edgetooltolinktheshape of yourunassociated (target) edgesto an associated (source)

  10. Delete the blocks inside the blade

  11. Meshrefining Refineyourmeshifneed, forexample a fineresolvedboundarylayeraroundthebladecan be useful

  12. FLUENT http://www.ara.bme.hu/~kristof/CFDjegyzet/ • Dimension: mm • Material: Water • Turbulencemodel: k-w SST • Rotationalmovingreferenceframe, angularvelocity: 62.6 [rad/s] • INLET: vel.inlet, v_in=3.5 [m/s] (absolute) TurbulenceIntensity = 10[%], d_hid=0.01[m] • OUTLET: pressureoutlet

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