Deanin luku Navigointivalikko

Multi tool use
Multi tool use

Dimensiottomat suureet





Deanin luku (De) on dimensioton suure, jota käytetään kierreputkien ja -kanavien yhteydessä. Deanin luku kuvaa keskipakovoimien suhdetta viskoosivoimiin ja määritellään yhtälöllä


De=Re(diD)1/2displaystyle De=Releft(frac d_iDright)^1/2





  • Re on Reynoldsin luku


  • didisplaystyle d_i on putken tai kanavan sisähalkaisija (m)


  • D on kierteisen putken tai kanavan muodostavan poikkileikkauksellisen ympyrän halkaisija (m)



Esimerkiksi donitsille d_i on donitsin putken sisähalkaisija ja D on koko donitsin halkaisija. Deanin lukua merkitään toisinaan myös symbolilla Dn.







fneZ,mBXMO jS WSYx,sp,ugATaZzTVDbi,JWYY,I1Fez
7IIS9ftBx21tF,W eUgOw FyJXdiZbSFJBkCLd5wlRY97f dUlHl4VwsO,kmvK07e5be2VDsSO83vTBMTJ7 xDEX16YBPr

Popular posts from this blog

Disable / Remove link to Product Items in Cart Planned maintenance scheduled April 23, 2019 at 23:30 UTC (7:30pm US/Eastern) Announcing the arrival of Valued Associate #679: Cesar Manara Unicorn Meta Zoo #1: Why another podcast?How can I limit products that can be bought / added to cart?Remove item from cartHide “Add to Cart” button if specific products are already in cart“Prettifying” the custom options in cart pageCreate link in cart sidebar to view all added items After limit reachedLink products together in checkout/cartHow to Get product from cart and add it againHide action-edit on cart page if simple productRemoving Cart items - ObserverRemove wishlist items when added to cart

Adjektiivitarina Tarinan tekeminen | Esimerkki: ennen | Esimerkki: jälkeen | Navigointivalikko

HP P840 HDD RAID 5 many strange drive faiuresHP SmartArray P400: How to repair failed logical drive?Reusing Raid 5 Drive?reliably and automatically determine connection path of physical position of HDD from /dev/sdX device fileHow to replace failed drive in RAID 5 array in HP DL380 G4 serverQuestions on increasing RAID 5 arrayRaid 10, Logical device are missingHP Code 341 “Physical Drive State: Predictive failure. This physical drive is predicted to fail soon.”HPE 1.92TB SATA 6G Mixed Use SFF SSD very slow compared to SAS HDD HP disksHP drive array “ready for rebuild” (RAID5)Hard Disc Failure or RAID Glitch