RTN Planets

Hydrocode Comparison for a Disc-Planet System


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RTN Planets

Workshop 2004

Fourier analysis of torques time series

The power density spectra of the torques series were calculated with an FFT routine from Numerical Recipes.

PDS

The plots show the PDS of the different torque contributions from inner disk, outer disk and total torques (all of them excluding the Roche lobe) in logarithmic scale.

The table shows the position and magnitude of the maxima of the PDS from inner and outer disk for the inviscid models sorted by the magnitude of the PDS at the maximum. The magnitude of the PDS is related with the amplitude of the oscillations at a given frequency. Upwind methods have larger maxima and the frequencies correspond roughly to the Keplerian frequencies at the gap edges. This is consistent with larger vortices being observed in the density maps of upwind methods calculations.

Inviscid Jupiter

Maximum PDS inner diskMaximum PDS outer disk
CodeFrequencyAmplitudeCodeFrequencyAmplitude
GLOBAL 0.59667897 0.00018941920 NIRVANA-PC 0.38717601 0.010722330
NIRVANA-PC 0.57234699 0.00015723030 GLOBAL 0.39184901 0.0083754640
GENESIS 0.55307603 3.0324019e-05 NIRVANA-GDA 0.38933799 0.0011166860
NIRVANA-GDA 0.56750900 2.8078030e-05 GENESIS 0.38833001 0.0010378510
TRAMP-vanLeer 0.58533800 1.1370090e-05 TRAMP-vanLeer 0.40096599 0.00039321001
FARGO 0.62744099 6.5619652e-06RH2D 0.40667799 0.00011675400
RH2D 0.57502300 3.8650910e-06FARGO 0.43701199 0.00011626330
AMRA 0.77870798 8.7679462e-07 TRAMP-PPM 0.44609100 3.1625030e-05
TRAMP-PPM 0.60810298 2.3282990e-07 JUPITER 0.40523300 2.9116551e-05
Flash-AP 1.6106800 2.1925329e-07 AMRA 0.89580703 1.2872950e-05
Flash-AG 0.53053099 8.9673037e-08 Flash-AG 0.35368699 4.8280858e-06
Rodeo 0.34375000 3.0010970e-08Rodeo 0.40625000 7.1541319e-07
JUPITER 0.40523300 2.5668101e-09 Flash-AP 0.99708802 3.6557881e-07

Inviscid Neptune

Maximum PDS inner diskMaximum PDS outer disk
CodeFrequencyAmplitudeCodeFrequencyAmplitude
NIRVANA-GD 0.77870798 8.7679462e-07 NIRVANA-GD 0.44609100 3.1625030e-05
AMRA 0.44740000 3.7767211e-07 TRAMP-PPM 0.25233400 2.8462189e-05
TRAMP-PPM 1.2661000 2.1702590e-07 TRAMP-vanLeer 0.24780300 2.3137420e-05
GLOBAL 0.43436101 6.4312573e-08 GLOBAL 0.43436101 1.2128140e-05
Flash-AP 0.34513801 3.9981501e-08 AMRA 0.48272100 8.1281514e-06
TRAMP-vanLeer 0.24780300 3.5961779e-08 FARGO 0.25146499 6.7074061e-06
Flash-AG 0.22184500 3.5703600e-08 RH2D 0.23987000 3.6249810e-06
JUPITER 0.31735101 2.3464059e-08 JUPITER 0.26852801 3.1124489e-06
FARGO 0.25146499 9.9411679e-09 Flash-AP 3.9978499 5.4115583e-07
NIRVANA-PC 0.20207600 8.7345953e-09 Pencil 0.30273399 4.7750262e-07
RH2D 0.23798101 7.1986541e-09 Flash-AG 0.20409800 5.2778589e-08
Pencil 0.19792999 4.8965538e-09Rodeo 0.23437300 3.2166920e-08
NIRVANA-GDA 0.20393001 4.6754258e-09 NIRVANA-PC 0.21049599 2.0570729e-08

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