- #1
Yam
- 32
- 1
According to my lecture notes, for centrifugal impellers
Backward curved blades have a outlet blade angle of less than 90,
radial blades have curved blades have a outlet blade angle of 90,
Forward curved blades have a outlet blade angle of more than 90.
As such i have 2 questions
1) does the inlet blade angle have any relationship with outlet blade angles?
Example, for a radial blade, inlet blade angle = outletblade angle = 90 degrees?
2) What does it mean that the inlet velocity triangle remains the same for radial and forward vanes?
How can they be the same when there is a centrifugal impeller adding angular momentum into the fluid?
Backward curved blades have a outlet blade angle of less than 90,
radial blades have curved blades have a outlet blade angle of 90,
Forward curved blades have a outlet blade angle of more than 90.
As such i have 2 questions
1) does the inlet blade angle have any relationship with outlet blade angles?
Example, for a radial blade, inlet blade angle = outletblade angle = 90 degrees?
2) What does it mean that the inlet velocity triangle remains the same for radial and forward vanes?
How can they be the same when there is a centrifugal impeller adding angular momentum into the fluid?