:. Projects

:. Asteroseismology
:. Dark Matter Galaxies
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:. Gravitophotons
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:. Pulse-Ram Induction

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:. Purpose
:. Theory
:. References

:. Components:

:. Combustion Chamber
:. CDN Nozzle
:. Gasoline Tank
:. Injector System
:. Internal Structure
:. Launch Control
:. Pressure Manifold
:. Pressure Tank
:. Propellants
:. Solid Fuel and Ignition
:. T-stoff Tanks
:. --

:. Data:

:. CFD CDN01
:. FEA Combustion Chamber
:. FEA F-02
:. FEA F-03
:. FEA F-04
:. FEA F-05
:. FEA F-06
:. FEA F-07
:. FEA T-stoff Flange
:. Pressure Tank Test

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FloWizard Final Report SS-Design
FloWizard Release: 2.0.4 SP-2005-07-14-12
Case: rocketnozzlessdesign02
Date of Report: Mar 23, 2006 17:13:59

Geometry:
Geometry-related inputs are shown below.

The dimensions of the SS-design convergent divergent nozzle.

File Import:

File Name	Dimensions
rocketnozzle01.sat	7.25000000003 x 19.410071611 x 7.234257509 in

Region Properties:

Name	Type	Fluid/Material	Calculate?
fluid.1	Fluid	ethylene-glycol	Yes

The expected exhaust products will not be ethylene-glycol, but it was used in this simulation because it was able to closely reproduce the advertised results of the stock SS-design. Until we get a better handle on the exhaust products, this fluid can be used as an indicator for what we should see on the test stand.

Boundary Conditions:

Name	Type	Flow Condition	Thermal Condition	Source of Flow
boundary-group.2	Outlet	Pressure=14.7 psi	not applicable	not applicable
outlet.1	Outlet	Pressure=14.7 psi	not applicable	not applicable
boundary-group.1	Wall	not applicable	Insulated (adiabatic)	not applicable
inlet.1	Inlet	Pressure (Total)=70.0 psi	Temperature=800 F
inlet.2	Inlet	Mass flow rate=2.0 lbm/s	Temperature=90 F

Results:

Tabular results and pictures (if any have been included) are shown below.
The calculation has determined that the flow is laminar.
The calculation is complete. (After 3001 iterations, the solution has converged using adjusted convergence criteria.)

Mesh Information:

The meshed flow region, the CDN and expansion area.

Variable	Value
Mesh type	Hex Core mesh
Total number of cells	571112
Tetrahedral cells	378384
Wedge cells	0
Hexahedral cells	192728
Pyramid cells	0

Solver Information

Variable	Discretization Scheme
Pressure	Standard
Momentum	Second Order
Temperature	Second Order

Gradient computation

Node Based

Total pressure distribution throughout the center of the flow region.

Pressure Differences (lb/ft2)

From Boundary	To Boundary	Value
inlet.1	boundary-group.2	6185.66592667
inlet.1	outlet.1	6185.60048898
inlet.2	boundary-group.2	-0.845042087722
inlet.2	outlet.1	-0.910479772725

Pressure Differences (Total) (lb/ft2)

From Boundary	To Boundary	Value
inlet.1	boundary-group.2	7830.34785372
inlet.1	outlet.1	7796.44377011
inlet.2	boundary-group.2	0.444825877704
inlet.2	outlet.1	-33.4592577359

Pressures (lb/ft2)

Boundary or Region	Average	Minimum	Maximum
boundary-group.2	2116.74488512	2116.30492246	2116.8128655
outlet.1	2116.8103228	2116.78529005	2116.8128655
boundary-group.1	3889.119231	1331.34520872	8677.51409774
inlet.1	8302.41081178	8013.01039056	8766.27702068
inlet.2	2115.89984303	1969.05577746	2118.78361268
fluid.1	2118.55892801	1331.34520872	8677.51409774

Pressures (Total) (lb/ft2)

Boundary or Region	Average	Minimum	Maximum
boundary-group.2	2117.00860403	2116.80374663	2118.38733657
outlet.1	2150.91268764	2116.81023283	2473.37805134
boundary-group.1	4786.13974069	1538.55691807	9817.14329485
inlet.1	9947.35645775	9903.7468846	10000.9837165
inlet.2	2117.45342991	1971.9345056	2120.34661597
fluid.1	2140.59302924	1538.55691807	10029.0468405

Velocity distribution throughout the center of the flow region.

Velocities (ft/s)

Boundary or Region	Average	Minimum	Maximum
boundary-group.2	6.50149682138	0.0162744831069	18.4868395152
outlet.1	63.3803430068	0.0162744831069	337.719494625
boundary-group.1	0.0	0.0	0.0
inlet.1	561.793911207	478.73274235	610.69688772
inlet.2	17.9851153547	17.8912790429	33.1878630821
fluid.1	43.5637209473	0.0	1552.50214525

Mach numbers throughout the center of the flow region.

Mach Number

Boundary or Region	Average	Minimum	Maximum
boundary-group.2	0.00823029257684	1.87179161697e-005	0.0266039356637
outlet.1	0.0740223790404	1.87179161697e-005	0.399634493223
inlet.1	0.545901385689	0.465168636615	0.593859555206
inlet.2	0.0267591268937	0.0257774442761	0.305397532511
fluid.1	0.051974270342	1.87179161697e-005	1.55228743824

Temperature distribution throughout the center of the flow region.

Temperatures (F)

Boundary or Region	Average	Minimum	Maximum
boundary-group.2	382.383893381	89.6766186479	444.999189446
outlet.1	427.60036347	384.781257317	444.999189446
boundary-group.1	773.17723271	713.832441397	850.992792958
inlet.1	789.022958123	787.086311025	792.045429677
inlet.2	89.9884084479	89.9875866655	89.9884655718
fluid.1	348.458512576	29.3442639121	794.297626943

Total Temperatures (F)

Boundary or Region	Average	Minimum	Maximum
boundary-group.2	382.383893381	89.6766186479	444.999189446
outlet.1	427.60036347	384.781257317	444.999189446
boundary-group.1	773.17723271	713.832441397	850.992792958
inlet.1	789.022958123	787.086311025	792.045429677
inlet.2	89.9884084479	89.9875866655	89.9884655718
fluid.1	348.901828432	29.5354044262	809.546230848

Mass Flow Rates (lbm/s)

Boundary	Value
boundary-group.2	1.81783835003
outlet.1	-4.46572473437
inlet.1	0.651201894035
inlet.2	1.99999786152
Net	0.00331337121169

Forces (lbf)

Boundary	X-Component	Y-Component	Z-Component
boundary-group.1	0.0220644447192	6.27279056697	-0.102888928106
Net	0.0220644447192	6.27279056697	-0.102888928106

Heat Transfer Rates (BTU/h),
Reference Temperature 76.9999999957(F)

Boundary	Value
boundary-group.2	1702828.89336
outlet.1	-3025820.94105
boundary-group.1	0.0
inlet.1	977664.923524
inlet.2	53983.4723321
Net	-291343.651837

Heat Transfer Coefficients (BTU/h-ft2-R)

Boundary	Value	Reference Temperature(F)
boundary-group.1	0.0	348.458512576

Results on Plane Cuts:

The location of the plane cut.

Plane Cut: YZ plane (constant x)

Variable	X	Y	Z	Distance
Point	0.0 ft	0.0 ft	0.0 ft	0.913344272096 ft
Normal Vector	1.0	0.0	0.0

Variable	Average	Minimum	Maximum
Velocity (ft/s)	168.970894073	0.0	1537.87399606
Pressure (lb/ft2)	2139.09921569	1483.07661062	8588.32877078
Pressure (Total) (lb/ft2)	2320.15852208	2036.00402151	9982.53737407
Temperature (F)	367.259756131	88.4630540552	791.239282161
Total Temperature (F)	370.855454912	88.5370985978	806.475313729
Mach Number	0.190558834817	0.00192816092695	1.53622102243

Plane Cut: XZ plane (constant y)

Variable	X	Y	Z	Distance
Point	0.0 ft	0.0 ft	0.0 ft	-9.85698333766 ft
Normal Vector	0.0	1.0	0.0

Variable	Average	Minimum	Maximum
Velocity (ft/s)	63.3119828174	0.0098452264619	337.132010465
Pressure (lb/ft2)	2116.78107079	2116.79130777	2116.81673646
Pressure (Total) (lb/ft2)	2134.19492854	2116.81158492	2471.91895164
Temperature (F)	427.924995792	384.805293837	444.999215752
Total Temperature (F)	428.307051254	384.810209089	444.999215752
Mach Number	0.074022436435	2.0022755036e-005	0.399746545874

Plane Cut: XY plane (constant z)

Variable	X	Y	Z	Distance
Point	0.0 ft	0.0 ft	0.0 ft	13.4261407384 ft
Normal Vector	0.0	0.0	1.0

Variable	Average	Minimum	Maximum
Velocity (ft/s)	165.722771024	0.0	1535.99965821
Pressure (lb/ft2)	2138.92802341	1490.19240942	8617.30049671
Pressure (Total) (lb/ft2)	2316.97762572	1993.94309342	9988.18175644
Temperature (F)	367.866256132	89.0419241383	792.00769977
Total Temperature (F)	371.396931549	89.0479611283	805.877075288
Mach Number	0.186842093435	0.00179291442445	1.53531889707

Results on Iso-surfaces:

Iso-Surface: Velocity magnitude.1
Iso-Surface variable: Velocity (ft/s)
Iso-Surface value : 1540.49744367

Variable	Average	Minimum	Maximum
Velocity (ft/s)	1539.51991875	1540.49740646	1540.49748687
Pressure (lb/ft2)	1500.77536026	1495.99577639	1496.02114231
Pressure (Total) (lb/ft2)	5044.20966769	5027.08841155	5027.17194654
Temperature (F)	719.81064614	721.524221365	721.527363331
Total Temperature (F)	801.870443724	803.690480921	803.693616348
Mach Number	1.53905965897	1.53893947043	1.53894161259

Results on Point Probes:

The virtual probe is located near the center of the CDN exit where the maximum velocity should occur.

Point Probe: probe.1

Variable	X	Y	Z
Point	0.913313680433 ft	-11.3033685158 ft	13.420902525 ft