OpenVSP - Google Groups

Groups

1–30 of 3426

The OpenVSP discussion group is the place to ask questions, report problems, make requests, or just discuss OpenVSP. When joining, give us a short message about why you want to join. It helps us separate real people from the bots.

0 selected

Mark Rostron, … Rob McDonald7

Aug 4

You should use a File type Airfoil when you have a specific non-parametric airfoil for a model. Rob

unread,

You should use a File type Airfoil when you have a specific non-parametric airfoil for a model. Rob

Aug 4

Cooper Cook, Rob McDonald2

Aug 4

Geometry Analysis Name Via API

When you add a geometry analysis... https://openvsp.org/api_docs/latest/group___analysis.html#

unread,

Geometry Analysis Name Via API

When you add a geometry analysis... https://openvsp.org/api_docs/latest/group___analysis.html#

Aug 4

Mike Vivaldi, Rob McDonald7

Aug 4

Conformal issue with fuselage

I was able to delete the lines in a text editor. Rob On Sunday, August 2, 2026 at 8:50:36 PM UTC-4

unread,

Conformal issue with fuselage

I was able to delete the lines in a text editor. Rob On Sunday, August 2, 2026 at 8:50:36 PM UTC-4

Aug 4

Aug 3

Negative CL at low negative AoA

Dear Rob, For this design, I am obtaining negative values for the (induced) lift coefficient. I

unread,

Negative CL at low negative AoA

Dear Rob, For this design, I am obtaining negative values for the (induced) lift coefficient. I

Aug 3

Aug 2

broken cfd mesh

one point to add is that the stl file i not broken if i directly export it to stl from openvsp,

unread,

broken cfd mesh

one point to add is that the stl file i not broken if i directly export it to stl from openvsp,

Aug 2

Demetrio Cucarella, Brandon Litherland2

Jul 29

Undergraduate thesis on propeller-wing/fuselage interference

Hi Demetrio, There is a lot to discuss here and I don't have a great deal of time to respond but

unread,

Undergraduate thesis on propeller-wing/fuselage interference

Hi Demetrio, There is a lot to discuss here and I don't have a great deal of time to respond but

Jul 29

Julien, … Rob McDonald7

Jul 29

Calculation of CDo in VSPAERO

I'm pretty sure it was ignored. The simple airfoil model we use was even more simple back then.

unread,

Calculation of CDo in VSPAERO

I'm pretty sure it was ignored. The simple airfoil model we use was even more simple back then.

Jul 29

Muhammad Bazil, … Koaib Kaleem4

Jul 27

CDo from Parasite Drag Tool (PDT) and VSPAero

HI i have a question, as per my knowledge the VLM/PM is inviscud, which means that it will include

unread,

CDo from Parasite Drag Tool (PDT) and VSPAero

HI i have a question, as per my knowledge the VLM/PM is inviscud, which means that it will include

Jul 27

Jul 26

OpenVSP 3.51.2 Released

Like the last version -- not a whole lot here, but good things nonetheless. So far, it looks like the

unread,

OpenVSP 3.51.2 Released

Like the last version -- not a whole lot here, but good things nonetheless. So far, it looks like the

Jul 26

Jul 26

CFD mesh - watertightness

Hi, is it normal that i have a water tight geom but when i scale it up about 19 times it becomes NOT

unread,

CFD mesh - watertightness

Hi, is it normal that i have a water tight geom but when i scale it up about 19 times it becomes NOT

Jul 26

Jul 26

Ground Effect Affect the Propeller Analysis

Hello, Everyone I'm doing a project in Propeller and Rotor Analysis in OpenVSP. There is one

unread,

Ground Effect Affect the Propeller Analysis

Hello, Everyone I'm doing a project in Propeller and Rotor Analysis in OpenVSP. There is one

Jul 26

Koaib Kaleem, Rob McDonald5

Jul 26

VSPAERO - Periodic wake, Done creating vortex sheet data...

Right thanks, i just moved the ht a little bit and it worked, Yes i ll be working on my mesh now. but

unread,

VSPAERO - Periodic wake, Done creating vortex sheet data...

Right thanks, i just moved the ht a little bit and it worked, Yes i ll be working on my mesh now. but

Jul 26

Koaib Kaleem, … Rob McDonald17

Jul 26

Sydney Standard Aerodynamic Models (SSAM) Fifth Generation Benchmark Model Aircraft

right thanks alot This is the model that i have finalized You may note that HT wings etc. are little

unread,

Sydney Standard Aerodynamic Models (SSAM) Fifth Generation Benchmark Model Aircraft

right thanks alot This is the model that i have finalized You may note that HT wings etc. are little

Jul 26

Jul 26

VSPAERO analysis not dispalying anything

Hi, I have a model and im trying to run VSPAEO analysis but its giving nothing (SS attached) I havent

unread,

VSPAERO analysis not dispalying anything

Hi, I have a model and im trying to run VSPAEO analysis but its giving nothing (SS attached) I havent

Jul 26

Alfredo Escolano Lopez, Rob McDonald8

Jul 24

Closing trailing edge

I attach the .txt file of the section 43. El viernes, 24 de julio de 2026 a las 20:58:42 UTC+2, Rob

unread,

Closing trailing edge

I attach the .txt file of the section 43. El viernes, 24 de julio de 2026 a las 20:58:42 UTC+2, Rob

Jul 24

HARISH KARTHICK AERO

Jul 24

Accessing and changing the m_PropBladesMode

Hello everyone, I've been working on Python API for OpenVSP for almost a month now but only with

unread,

Accessing and changing the m_PropBladesMode

Hello everyone, I've been working on Python API for OpenVSP for almost a month now but only with

Jul 24

Esther Barros Gomes, Rob McDonald4

Jul 21

Best practice for modeling bi-directional endplates (up and down) for VLM stability derivatives?

Ok, the Cull Orphans flag is not going to be useful for you. I'm not sure -- I would try aligning

unread,

Best practice for modeling bi-directional endplates (up and down) for VLM stability derivatives?

Ok, the Cull Orphans flag is not going to be useful for you. I'm not sure -- I would try aligning

Jul 21

Jaime García, Rob McDonald9

Jul 21

Help needed with Unsteady analysis: store dropped

Hi Rob, I wanted to follow up and share that I've managed to resolve the issue! It turned out to

unread,

Help needed with Unsteady analysis: store dropped

Hi Rob, I wanted to follow up and share that I've managed to resolve the issue! It turned out to

Jul 21

Rob McDonald, … Jaime García5

Jul 21

OpenVSP 3.51.1 Released

Glad to hear it -- I did use your test case as a stress test during this process. That said, the

unread,

OpenVSP 3.51.1 Released

Glad to hear it -- I did use your test case as a stress test during this process. That said, the

Jul 21

Augustine Bageanis, … Minh Nguyen Ngoc14

Jul 17

Hi there, Its 2026, it seems no new update significantly on customization of VSPAERO PQR analysis on

unread,

Hi there, Its 2026, it seems no new update significantly on customization of VSPAERO PQR analysis on

Jul 17

Brandon Litherland, … Rob McDonald6

Jul 15

Re: Extensive runtime for wing analysis

You turned on the 'Negative Volume' flag on the Fuselage geometry. It is on the first tab.

unread,

Re: Extensive runtime for wing analysis

You turned on the 'Negative Volume' flag on the Fuselage geometry. It is on the first tab.

Jul 15

Jaime García, Rob McDonald9

Jul 15

Query: Scripting API access for SubSurface Intersect (Windows v3.51)

When you copy/paste the geometry, it likely needs an additional Update. I would consider changing the

unread,

Query: Scripting API access for SubSurface Intersect (Windows v3.51)

When you copy/paste the geometry, it likely needs an additional Update. I would consider changing the

Jul 15

Jaime García, Rob McDonald5

Jul 14

New CustomGeom Scripts Available on Airshow: Parametric Fuselage Generator & Passenger Seat Group Array

I just took a quick look -- I'm not going to be able to help much (any). The time is not going

unread,

New CustomGeom Scripts Available on Airshow: Parametric Fuselage Generator & Passenger Seat Group Array

I just took a quick look -- I'm not going to be able to help much (any). The time is not going

Jul 14

Mano, Brandon Litherland4

Jul 14

smooth hub transition

"Proper" meaning what, specifically? Are you using VSPAERO to produce loads to apply to a

unread,

smooth hub transition

"Proper" meaning what, specifically? Are you using VSPAERO to produce loads to apply to a

Jul 14

Mike Vivaldi, … Zach Hazen9

Jul 11

Result interpretation

Sounds exciting. Thanks. On Sunday, July 12, 2026 at 2:30:42 AM UTC+12 Rob McDonald wrote: We are

unread,

Result interpretation

Sounds exciting. Thanks. On Sunday, July 12, 2026 at 2:30:42 AM UTC+12 Rob McDonald wrote: We are

Jul 11

Koaib Kaleem, … Brandon Litherland11

Jul 10

Missing Slices from Planar Analysis

also the dimensions of teh stl file taht i had shared in prev post is meteres, to get full scale

unread,

Missing Slices from Planar Analysis

also the dimensions of teh stl file taht i had shared in prev post is meteres, to get full scale

Jul 10

Cooper Cook, Rob McDonald3

Jul 9

Geometry Analysis Make MeshGeom Via API

Hi Rob, Thank you for the confirmation. I've reported it as an issue. I'd be happy to compile

unread,

Geometry Analysis Make MeshGeom Via API

Hi Rob, Thank you for the confirmation. I've reported it as an issue. I'd be happy to compile

Jul 9

Akarsh Shetty, Brandon Litherland2

Jul 8

OpenVSP Fuselage modelling best practices

You will have to be more specific. Please post an example of what you are trying to accomplish. Are

unread,

OpenVSP Fuselage modelling best practices

You will have to be more specific. Please post an example of what you are trying to accomplish. Are

Jul 8

Omer Kandemir, Rob McDonald2

Jul 7

CreateAndAddBogie Python Interface

It looks like I neglected to add Bogie Add/Delete/List type routines to the API when I added GearGeom

unread,

CreateAndAddBogie Python Interface

It looks like I neglected to add Bogie Add/Delete/List type routines to the API when I added GearGeom

Jul 7

Jul 6

Aerostructural analysis for propellers

Is there a way to write centrifugal loads to calculix input file (or other solvers) from Openvsp?

unread,

Aerostructural analysis for propellers

Is there a way to write centrifugal loads to calculix input file (or other solvers) from Openvsp?

Jul 6

Search

Clear search

Close search

Google apps

Main menu