Riffle Angles

[kiwi101]

Hi everyone

building the riffles for my sluice at the moment and was wondering if there is a optimum angle for the riffles before i weld them. I was thinking just 45 degrees?
the plan was to have expanded mesh but at $500 a sheet its way out of my budget!

the general specs for the sluice:

1500mm long
250mm wide
miners mat under everything.
water flow will vary due to it being a general river sluice, High banker, and dredge(it will be modified for different applications)

suggestions?

 

[afreakofnature]

Read the clarkson studies on riffles

 

[KevinInColorado]

I think I owe you a favor....here's a link to find the Clarkson analysis: http://www.nuggetshooter.ipbhost.com/index.php?showtopic=24820

 

[kiwi101]

that is really helpful. thankyou!