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Njutnovske tečnostiKod Njutnovskih fluida napon smicanja je direktnoproporcionalan brzini smicanja (pri laminarnom toku):tj.,τ=μ⋅υN ⎛ 1= μ2⎜⎝ sKonstanta proporcionalnosti, μ je viskoznost fluida inezavisna je od brzine smicanja.m⎞⎟⎠22

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