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Old 01-12-2021, 04:15 PM   #11 (permalink)
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Cd perforating a boxed cavity seems counterproductive.
Why?

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Old 01-12-2021, 04:55 PM   #12 (permalink)
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I don't understand the question?
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Old 01-12-2021, 04:56 PM   #13 (permalink)
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Quote:
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I don't understand the question?
Why do you think that perforating a box cavity seems counterproductive?
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Old 01-12-2021, 05:37 PM   #14 (permalink)
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I don't understand the question? >> Why?

If I knew that I'd probably understand.

I went back to your most click-bait title: There is no magic in a Kamm tail!

I remembered it as conflating Kamm-back and Kamm-tail. At 5:35 You have the red, blue and not-green lines. A Kamm-back is a field expedient fix for the area between red and blue lines. I view it as a boxed cavity.

Since I'm minus a Kamm-back and pressure pucks and tubing, I can't establish the differential between the inner and outer face of a Kamm-back. I hope that answers your question.
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Old 01-12-2021, 05:44 PM   #15 (permalink)
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Quote:
Originally Posted by freebeard View Post
I don't understand the question? >> Why?

If I knew that I'd probably understand.

I went back to your most click-bait title: There is no magic in a Kamm tail!

I remembered it as conflating Kamm-back and Kamm-tail. At 5:35 You have the red, blue and not-green lines. A Kamm-back is a field expedient fix for the area between red and blue lines. I view it as a boxed cavity.

Since I'm minus a Kamm-back and pressure pucks and tubing, I can't establish the differential between the inner and outer face of a Kamm-back. I hope that answers your question.
Sorry, I don't understand how any of that answers this question: why do you think that perforating a box cavity seems counterproductive?

Or to put it another way, how do you think a box cavity works and how will that mechanism be impacted by vents?
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Old 01-12-2021, 07:15 PM   #16 (permalink)
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I'm not trying to be contrary. That's exactly what I'm fishing for asking.

How would a boxed cavity's effectiveness not be compromised by ventilation.
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Old 01-12-2021, 07:21 PM   #17 (permalink)
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Quote:
Originally Posted by freebeard View Post
I'm not trying to be contrary. That's exactly what I'm fishing for asking.

How would a boxed cavity's effectiveness not be compromised by ventilation.
You're the one putting forward the proposition, not me! Your proposition was:

'perforating a boxed cavity seems counterproductive'

I wondered why you thought that, and I still do.
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Old 01-12-2021, 08:00 PM   #18 (permalink)
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That's because you are oblivious to Internet culture. It's the law. Cunningham's Law.
Quote:
Sherlock Holmes has been known to use the principle at times (for example, in The Sign of the Four.[3]) In "Duty Calls," xkcd references a similar concept.[4]
I can post XKCD again, if it would help.

Quote:
Declarative, interrogative, and imperative statements ...
https://grammar.collinsdictionary.co...ive-statements
Each sentence in English provides some type of information. For example, a sentence can be a statement, a question, a request, a command, a denial or a response, etc. In English the choice and order of the parts of a sentence help us express these meanings....
'perforating a boxed cavity seems counterproductive'

Okay by me if you just let the personal attacks go.
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Old 01-12-2021, 08:24 PM   #19 (permalink)
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Quote:
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That's because you are oblivious to Internet culture. It's the law. Cunningham's Law.


I can post XKCD again, if it would help.



'perforating a boxed cavity seems counterproductive'

Okay by me if you just let the personal attacks go.
Personal attack? What rubbish. I just asked you to support what you had said. That seems pretty basic to me in any rational discussion.

I am interested in talking about car aerodynamics, and you made a point which puzzled me. I asked you to support what you'd said but instead, we got basically nothing.

(And to be frank, I couldn't care less about your internet culture laws.)
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Old 01-12-2021, 08:38 PM   #20 (permalink)
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Quote:
Originally Posted by freebeard View Post
I remembered it as conflating Kamm-back and Kamm-tail.
This distinction only exists in English; both are translations of the German Kamm-heck ("heck" = "rear" or "tail").

Re: ventilated box cavities--I think I have some papers on these, I'll check my desktop when I get home.

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