The Analysis of Flow Separation Loss of Impeller in Centrifugal Compressor under Variable Conditions
Bin Cai, Yongsheng Su
Available Online March 2016.
- https://doi.org/10.2991/icmmct-16.2016.130How to use a DOI?
- Angle of attack, Degree of separation loss, Equivalent volume, Numerical simulation
- In order to study the change condition of the influence on the centrifugal compressor blade field, we change the size of the centrifugal compressor inlet flow and the centrifugal compressor impeller rotational speed,using the realizable Îº-Îµ ii equation model to do the steady numerical simulation for the full port of centrifugal compressor. Through calculation, we get different inlet flow and rotate speed of centrifugal compressor internal flow field distribution of relative velocity,at the same time using the concept of Degree of Separation Loss to analyze the separation loss within impeller passage. The results show that under the condition of variable working condition, the change of Angle of attack is the primary factor for the the impeller separation, and when the Angle of attack of the same time, the smaller the relative velocity, the greater the separation loss. Therefore in the process of actual production, in order to reduce the loss of separation, we should reduce the size of Angle of attack, appropriatly increase import flow or impeller rotational speed.
- Open Access
- This is an open access article distributed under the CC BY-NC license.
Cite this article
TY - CONF AU - Bin Cai AU - Yongsheng Su PY - 2016/03 DA - 2016/03 TI - The Analysis of Flow Separation Loss of Impeller in Centrifugal Compressor under Variable Conditions BT - Proceedings of the 2016 4th International Conference on Machinery, Materials and Computing Technology PB - Atlantis Press SP - 667 EP - 672 SN - 2352-5401 UR - https://doi.org/10.2991/icmmct-16.2016.130 DO - https://doi.org/10.2991/icmmct-16.2016.130 ID - Cai2016/03 ER -