Studies on the evolution of shock wave in gas film clearance for aerostatic thrust bearing
by Shang-Han Gao; Sheng-Long Nong; Wu-Bin Xu
Progress in Computational Fluid Dynamics, An International Journal (PCFD), Vol. 20, No. 4, 2020

Abstract: This paper researches the evolutions of shock waves in the gas film of aerostatic thrust bearing with a single air supply inlet. The ANSYS Fluent 18.0® is adopted to discuss the flow field characteristics, such as, supersonic flow, negative pressure, load capacity of bearing and backflow area with large values of both gas film thickness and supply pressure. Under thick clearance and large supply pressure conditions, the supersonic flow leads to the appearance of shock wave and causes a negative pressure. If the multi-reflection phenomenon of shock wave occurs, the total load capacity of bearing will even drop to be negative. The above results provide a theoretical basis for people to understand the flow field characteristics of the gas film in the aerostatic thrust bearing under large gas film thickness and large supply pressure conditions, and help the researchers to find out the effective way to restrain the emergence of shock waves and improve the load capacity of aerostatic thrust bearings.

Online publication date: Wed, 15-Jul-2020

The full text of this article is only available to individual subscribers or to users at subscribing institutions.

Existing subscribers:
Go to Inderscience Online Journals to access the Full Text of this article.

Pay per view:
If you are not a subscriber and you just want to read the full contents of this article, buy online access here.

Complimentary Subscribers, Editors or Members of the Editorial Board of the Progress in Computational Fluid Dynamics, An International Journal (PCFD):
Login with your Inderscience username and password:

    Username:        Password:         

Forgotten your password?

Want to subscribe?
A subscription gives you complete access to all articles in the current issue, as well as to all articles in the previous three years (where applicable). See our Orders page to subscribe.

If you still need assistance, please email