This is the source listing of the computer code SPIRALI which predicts the performance characteristics of incompressible cylindrical and face seals with or without the inclusion of spiral grooves. Performance characteristics include load capacity (for face seals), leakage flow, power requirements and dynamic characteristics in the form of stiffness, damping and apparent mass coefficients in 4 degrees of freedom for cylindrical seals and 3 degrees of freedom for face seals. These performance characteristics are computed as functions of seal and groove geometry, load or film thickness, running and disturbance speeds, fluid viscosity, and boundary pressures
Self-acting seals are described in detail. The mathematical models for obtaining a seal force balanc...
A viewgraph presentation is made of the objectives, capabilities, and test results of the computer c...
The leakages and the dynamic characteristics of six types of spiral grooved seals are experimentally...
The SPIRALI code predicts the performance characteristics of incompressible cylindrical and face sea...
A self-acting spiral groove inter-shaft ring seal of nominal 16.33 cm (6.43 in.) diameter for sealin...
Mating flat surfaces inhibit leakage of a fluid around a stationary shaft. A spiral groove produces ...
The industrial codes will consist of modules of 2-D and simplified 2-D or 1-D codes, intended for ex...
An experimental evaluation and a 100-hour endurance test were performed on a spiral groove geometry,...
Current activities in seals for space propulsion turbomachinery that the NASA Lewis Research Center ...
The purposes of the computer tools for face seal analysis are new product optimization, existing sea...
Due to the character of the original source materials and the nature of batch digitization, quality ...
The dynamic characteristics of spiral-grooved seals are theoretically obtained by using the Navier-S...
NASA/Lewis Research Center is sponsoring a program for providing computer codes for analyzing and de...
The principle of herringbone-grooved journal bearings has been applied to the case of a seal disc ru...
A computer program is presented for compressible fluid flow with friction across face seals and thro...
Self-acting seals are described in detail. The mathematical models for obtaining a seal force balanc...
A viewgraph presentation is made of the objectives, capabilities, and test results of the computer c...
The leakages and the dynamic characteristics of six types of spiral grooved seals are experimentally...
The SPIRALI code predicts the performance characteristics of incompressible cylindrical and face sea...
A self-acting spiral groove inter-shaft ring seal of nominal 16.33 cm (6.43 in.) diameter for sealin...
Mating flat surfaces inhibit leakage of a fluid around a stationary shaft. A spiral groove produces ...
The industrial codes will consist of modules of 2-D and simplified 2-D or 1-D codes, intended for ex...
An experimental evaluation and a 100-hour endurance test were performed on a spiral groove geometry,...
Current activities in seals for space propulsion turbomachinery that the NASA Lewis Research Center ...
The purposes of the computer tools for face seal analysis are new product optimization, existing sea...
Due to the character of the original source materials and the nature of batch digitization, quality ...
The dynamic characteristics of spiral-grooved seals are theoretically obtained by using the Navier-S...
NASA/Lewis Research Center is sponsoring a program for providing computer codes for analyzing and de...
The principle of herringbone-grooved journal bearings has been applied to the case of a seal disc ru...
A computer program is presented for compressible fluid flow with friction across face seals and thro...
Self-acting seals are described in detail. The mathematical models for obtaining a seal force balanc...
A viewgraph presentation is made of the objectives, capabilities, and test results of the computer c...
The leakages and the dynamic characteristics of six types of spiral grooved seals are experimentally...