Hi, this is steady-state CFD simulation report of:

tcfdcase0

Created by TCFD^® 18.10 on Wed Oct 3 10:00:24 2018

DISCOVER

Simulation Stats

Test Case Name	tcfdcase0
Number of Points [ – ]	7
Machine Type	pump
Rotation Speed [ RPM ]	-1770.00
Number of Components [ – ] (topology)	3
Mesh Size [ cells ] (details)	pipe : 65845 impeller : 514148 volute : 69443 Total : 649436
Mesh details [ mm ]: Component Property Min Max Avg 1 cellOpenness N/A 3.94354 × 10-16 N/A 1 cellVolume 1.12947 809.196 N/A 1 faceArea 1.06286 110.627 N/A 1 aspectRatio N/A 7.36125 N/A 1 nonOrthogonality N/A 54.4401 12.8775 1 skewness N/A 1.18738 N/A 1 edgeLength N/A N/A N/A 1 concaveAngle N/A 18.7287 N/A 1 faceFlatness 0.907074 N/A 0.999423 1 cellDeterminant 0.0666863 N/A 17.9059 1 faceInterpolationWeight 0.112930 N/A 0.448066 1 faceVolumeRatio 0.0466774 0.732425 N/A 1 Warnings: 8 faces with low quality or negative volume decomposition tets 303 faces with concave angles 5396 concave cells 2 cellOpenness N/A 3.49886 × 10-16 N/A 2 cellVolume 0.00170227 107.645 N/A 2 faceArea 6.62238 × 10-4 24.4009 N/A 2 aspectRatio N/A 6.33812 N/A 2 nonOrthogonality N/A 64.9756 16.4273 2 skewness N/A 11.5852 N/A 2 edgeLength 0 4.86365 N/A 2 concaveAngle N/A 79.9776 N/A 2 faceFlatness 0.323833 N/A 0.994544 2 cellDeterminant 0.00525636 N/A 26.4628 2 faceInterpolationWeight 0.0489079 N/A 0.423346 2 faceVolumeRatio 0.0100274 0.608267 N/A 2 Warnings: 19 skew faces 2598 faces with low quality or negative volume decomposition tets 32 points on short edges 17666 faces with concave angles 109 warped faces 54742 concave cells 1 faces with low interpolation weights 3 cellOpenness N/A 3.41572 × 10-16 N/A 3 cellVolume 8.80679 994.681 N/A 3 faceArea 2.41077 98.9865 N/A 3 aspectRatio N/A 6.12298 N/A 3 nonOrthogonality N/A 64.0598 13.0366 3 skewness N/A 3.33267 N/A 3 edgeLength 0 10.6267 N/A 3 concaveAngle N/A 79.9189 N/A 3 faceFlatness 0.597337 N/A 0.997008 3 cellDeterminant 0.111085 N/A 18.4641 3 faceInterpolationWeight 0.104963 N/A 0.447913 3 faceVolumeRatio 0.0199634 0.731518 N/A 3 Warnings: 99 faces with low quality or negative volume decomposition tets 2 points on short edges 531 faces with concave angles 1 warped faces 4557 concave cells
Average y+ at walls [ – ] (details)	925.363
y+ details: Point Patch Min Max Avg 1 pipe_inletPipe-wall_wall 34.0348 341.541 201.839 1 impeller_impeller-shroud_wall 4.95318 × 10-7 270.055 24.9826 1 impeller_impeller-blades_wall 2.76399 × 10-7 156.479 2.49772 1 impeller_impeller-hub_wall 3.89639 × 10-7 48.8656 0.600773 1 volute_volute-RSIConnection_wall 4.68824 × 10-6 2704.28 264.705 1 volute_volute-wall_wall 3.30729 × 10-6 4286.14 138.249 2 pipe_inletPipe-wall_wall 32.0870 399.528 194.918 2 impeller_impeller-shroud_wall 10.0325 453.975 122.303 2 impeller_impeller-blades_wall 7.37874 × 10-7 329.927 43.5829 2 impeller_impeller-hub_wall 1.93171 366.743 97.7090 2 volute_volute-RSIConnection_wall 70.0834 2778.94 538.632 2 volute_volute-wall_wall 20.3019 4242.18 369.246 3 pipe_inletPipe-wall_wall 30.1276 377.980 185.230 3 impeller_impeller-shroud_wall 10.9818 581.362 129.994 3 impeller_impeller-blades_wall 3.37953 365.452 54.2766 3 impeller_impeller-hub_wall 10.2316 431.400 152.713 3 volute_volute-RSIConnection_wall 121.667 2857.88 643.043 3 volute_volute-wall_wall 59.7029 4236.59 423.024 4 pipe_inletPipe-wall_wall 28.1562 359.586 174.990 4 impeller_impeller-shroud_wall 10.9541 604.149 128.781 4 impeller_impeller-blades_wall 2.93588 378.055 55.2524 4 impeller_impeller-hub_wall 9.93268 521.268 162.866 4 volute_volute-RSIConnection_wall 153.613 2956.38 723.527 4 volute_volute-wall_wall 100.359 4149.47 469.419 5 pipe_inletPipe-wall_wall 26.1730 340.530 164.781 5 impeller_impeller-shroud_wall 10.8165 595.721 125.472 5 impeller_impeller-blades_wall 2.51152 370.746 53.5257 5 impeller_impeller-hub_wall 9.67516 527.586 158.036 5 volute_volute-RSIConnection_wall 175.787 3031.79 792.418 5 volute_volute-wall_wall 112.794 3973.20 513.939 6 pipe_inletPipe-wall_wall 24.1786 317.774 155.811 6 impeller_impeller-shroud_wall 10.7439 951.985 125.731 6 impeller_impeller-blades_wall 2.66024 404.843 52.9667 6 impeller_impeller-hub_wall 9.02048 521.641 156.241 6 volute_volute-RSIConnection_wall 181.324 3044.59 839.814 6 volute_volute-wall_wall 114.421 3949.59 529.314 7 pipe_inletPipe-wall_wall 22.1744 294.456 145.722 7 impeller_impeller-shroud_wall 10.6494 778.857 126.026 7 impeller_impeller-blades_wall 3.40895 436.576 53.4091 7 impeller_impeller-hub_wall 8.92060 513.063 157.054 7 volute_volute-RSIConnection_wall 184.046 3064.32 925.363 7 volute_volute-wall_wall 119.404 4287.07 555.858
Wall-clock time [ hh:mm:ss ]	00:38:06
Parallel Processors [ – ]	6
Fluid Name	water
Compressibility	incompressible

Head

1:inletPipe-inlet — 3:volute-outlet

Point Nr.	Flow Rate [ m3/s ]	Head [ m ]
1	0.186000	26.2727
2	0.176000	27.6047
3	0.166000	28.9587
4	0.156000	30.2512
5	0.146000	31.4314
6	0.136000	32.4256
7	0.126000	33.3651

Efficiency

1:inletPipe-inlet — 3:volute-outlet

Point Nr.	Flow Rate [ m3/s ]	Efficiency [ – ]
1	0.186000	0.887833
2	0.176000	0.886539
3	0.166000	0.886480
4	0.156000	0.886342
5	0.146000	0.883206
6	0.136000	0.873660
7	0.126000	0.863719

Torque

Point Nr.	Torque [ N.m ]
1	290.914
2	289.654
3	286.616
4	281.416
5	274.624
6	266.791
7	257.264

Axial Force

Point Nr.	Torque [ N ]
1	5750.16
2	6235.87
3	6691.82
4	7118.88
5	7504.70
6	7833.88
7	8145.58

Total Pressure Difference

1:inletPipe-inlet — 3:volute-outlet

Point Nr.	Flow Rate [ m3/s ]	Total Pressure Difference [ Pa ]
1	0.186000	257271.
2	0.176000	270315.
3	0.166000	283574.
4	0.156000	296230.
5	0.146000	307787.
6	0.136000	317523.
7	0.126000	326723.

Total Pressure per Interfaces

Point Nr.	Interface Name	Flow Rate [ m3/s ]	Total Pressure [ Pa ]
1	pipe-in	0.186000	175530.
1	pipe-to-impeller	0.186000	175137.
1	impeller-from-pipe	0.186167	175135.
1	impeller-to-volute	0.186167	451027.
1	volute-from-impeller	0.186167	448610.
1	volute-out	0.186167	432801.
2	pipe-in	0.176000	156854.
2	pipe-to-impeller	0.176000	156480.
2	impeller-from-pipe	0.176160	156478.
2	impeller-to-volute	0.176160	445538.
2	volute-from-impeller	0.176160	443319.
2	volute-out	0.176160	427169.
3	pipe-in	0.166000	139894.
3	pipe-to-impeller	0.166000	139557.
3	impeller-from-pipe	0.166151	139556.
3	impeller-to-volute	0.166151	442570.
3	volute-from-impeller	0.166151	440416.
3	volute-out	0.166151	423468.
4	pipe-in	0.156000	123876.
4	pipe-to-impeller	0.156000	123577.
4	impeller-from-pipe	0.156143	123576.
4	impeller-to-volute	0.156143	440213.
4	volute-from-impeller	0.156143	438189.
4	volute-out	0.156143	420105.
5	pipe-in	0.146000	109475.
5	pipe-to-impeller	0.146000	109211.
5	impeller-from-pipe	0.146135	109211.
5	impeller-to-volute	0.146135	439321.
5	volute-from-impeller	0.146134	437437.
5	volute-out	0.146134	417262.
6	pipe-in	0.136000	97475.5
6	pipe-to-impeller	0.136000	97267.2
6	impeller-from-pipe	0.136127	97266.9
6	impeller-to-volute	0.136127	440243.
6	volute-from-impeller	0.136126	438424.
6	volute-out	0.136126	414998.
7	pipe-in	0.126000	86127.9
7	pipe-to-impeller	0.126000	85945.8
7	impeller-from-pipe	0.126118	85945.8
7	impeller-to-volute	0.126118	441900.
7	volute-from-impeller	0.126118	440200.
7	volute-out	0.126118	412851.

Velocity Magnitude per Interfaces

Point Nr.	Interface Name	Flow Rate [ m3/s ]	Velocity Magnitude [ m/s ]
1	pipe-in	0.186000	6.71332
1	pipe-to-impeller	0.186000	6.80191
1	impeller-from-pipe	0.186167	6.80232
1	impeller-to-volute	0.186167	11.8995
1	volute-from-impeller	0.186167	11.7184
1	volute-out	0.186167	7.88506
2	pipe-in	0.176000	6.35239
2	pipe-to-impeller	0.176000	6.44277
2	impeller-from-pipe	0.176160	6.44327
2	impeller-to-volute	0.176160	12.2560
2	volute-from-impeller	0.176160	12.0891
2	volute-out	0.176160	7.24697
3	pipe-in	0.166000	5.99146
3	pipe-to-impeller	0.166000	6.08612
3	impeller-from-pipe	0.166151	6.08666
3	impeller-to-volute	0.166151	12.6339
3	volute-from-impeller	0.166151	12.4795
3	volute-out	0.166151	6.77062
4	pipe-in	0.156000	5.63052
4	pipe-to-impeller	0.156000	5.73135
4	impeller-from-pipe	0.156143	5.73196
4	impeller-to-volute	0.156143	13.0118
4	volute-from-impeller	0.156143	12.8688
4	volute-out	0.156143	6.29681
5	pipe-in	0.146000	5.26959
5	pipe-to-impeller	0.146000	5.37894
5	impeller-from-pipe	0.146135	5.37962
5	impeller-to-volute	0.146135	13.3971
5	volute-from-impeller	0.146134	13.2655
5	volute-out	0.146134	5.85039
6	pipe-in	0.136000	4.90866
6	pipe-to-impeller	0.136000	5.03016
6	impeller-from-pipe	0.136127	5.03095
6	impeller-to-volute	0.136127	13.7386
6	volute-from-impeller	0.136126	13.6182
6	volute-out	0.136126	5.45087
7	pipe-in	0.126000	4.54773
7	pipe-to-impeller	0.126000	4.68385
7	impeller-from-pipe	0.126118	4.68476
7	impeller-to-volute	0.126118	14.1467
7	volute-from-impeller	0.126118	14.0357
7	volute-out	0.126118	5.04734

pipe-in

pipe-to-impeller

impeller-from-pipe

impeller-to-volute

volute-from-impeller

volute-out

pipe-in

pipe-to-impeller

impeller-from-pipe

impeller-to-volute

volute-from-impeller

volute-out

Circumferential and Meridional Angle

Point Nr.	Interface Name	Flow Rate [ m3/s ]	Circumferential Angle [ deg ]	Meridional Angle [ deg ]
1	pipe-in	0.186000	90.0000	0
1	pipe-to-impeller	0.186000	90.0321	4.30552
1	impeller-from-pipe	0.186167	147.973*	4.30329*
1	impeller-to-volute	0.186167	162.593*	74.2059*
1	volute-from-impeller	0.186167	154.686	74.1274
1	volute-out	0.186167	128.796	89.8891
2	pipe-in	0.176000	90.0000	0
2	pipe-to-impeller	0.176000	90.0419	4.35762
2	impeller-from-pipe	0.176160	149.292*	4.35528*
2	impeller-to-volute	0.176160	162.904*	74.5836*
2	volute-from-impeller	0.176160	156.891	74.5020
2	volute-out	0.176160	128.617	89.6674
3	pipe-in	0.166000	90.0000	0
3	pipe-to-impeller	0.166000	90.0528	4.44301
3	impeller-from-pipe	0.166151	150.655*	4.44064*
3	impeller-to-volute	0.166151	163.235*	74.4570*
3	volute-from-impeller	0.166151	158.979	74.3830
3	volute-out	0.166151	128.361	89.7894
4	pipe-in	0.156000	90.0000	0
4	pipe-to-impeller	0.156000	90.0686	4.52570
4	impeller-from-pipe	0.156143	152.056*	4.52329*
4	impeller-to-volute	0.156143	163.601*	74.7096*
4	volute-from-impeller	0.156143	160.895	74.6121
4	volute-out	0.156143	128.314	89.8587
5	pipe-in	0.146000	90.0000	0
5	pipe-to-impeller	0.146000	90.0915	4.60951
5	impeller-from-pipe	0.146135	153.494*	4.60708*
5	impeller-to-volute	0.146135	163.998*	75.2855*
5	volute-from-impeller	0.146134	162.678	75.1543
5	volute-out	0.146134	128.388	89.8718
6	pipe-in	0.136000	90.0000	0
6	pipe-to-impeller	0.136000	90.1239	4.70099
6	impeller-from-pipe	0.136127	154.985*	4.69853*
6	impeller-to-volute	0.136127	164.467*	75.7881*
6	volute-from-impeller	0.136126	164.291	75.6653
6	volute-out	0.136126	128.279	89.9145
7	pipe-in	0.126000	90.0000	0
7	pipe-to-impeller	0.126000	90.1725	4.76922
7	impeller-from-pipe	0.126118	156.489*	4.76678*
7	impeller-to-volute	0.126118	164.919*	76.3897*
7	volute-from-impeller	0.126118	165.871	76.2161
7	volute-out	0.126118	128.211	89.9119

(*) Calculated from the relative velocity.

pipe-in

pipe-to-impeller

impeller-from-pipe

impeller-to-volute

volute-from-impeller

volute-out

pipe-in

pipe-to-impeller

impeller-from-pipe

impeller-to-volute

volute-from-impeller

volute-out

Cavitation Risk

Point Nr.	Flow Rate [ m3/s ]	Cavitating Volume [ m3 ]	Cavitating Volume [ % ]
1	0.186000	1.15898 × 10-10	3.91953 × 10-7
2	0.176000	0	0
3	0.166000	0	0
4	0.156000	5.54853 × 10-9	1.87645 × 10-5
5	0.146000	2.46263 × 10-7	8.32832 × 10-4
6	0.136000	1.06434 × 10-6	0.00359946
7	0.126000	2.37543 × 10-6	0.00803341

Cavitation Index

Point Nr.	Flow Rate [ m3/s ]	Cavitating Volume [ – ]
1	0.186000	3.39330
2	0.176000	3.39775
3	0.166000	3.39736
4	0.156000	3.40917
5	0.146000	3.45042
6	0.136000	3.54316
7	0.126000	3.66873

Net Positive Suction Head

Point Nr.	Flow Rate [ m3/s ]	NPSH [ m ]
1	0.186000	17.8864
2	0.176000	16.0331
3	0.166000	14.2615
4	0.156000	12.6332
5	0.146000	11.1822
6	0.136000	9.93068
7	0.126000	8.78870

Blade to Blade View

Setup #1

Meshes:	2
Hub patches:	2:impeller-hub
Shroud patches:	2:impeller-shroud
Field:	URel,LIC
Span:	0.1

Setup #2

Setup #2
Meshes:	2
Hub patches:	2:impeller-hub
Shroud patches:	2:impeller-shroud
Field:	URel,LIC
Span:	0.5

Setup #3

Meshes:	2
Hub patches:	2:impeller-hub
Shroud patches:	2:impeller-shroud
Field:	URel,LIC
Span:	0.9

Meridional Average

Setup #1

Meshes:	2
Field:	p