Title
Reshenie uravneniya Nav'e Stoksa: Primenenie resheniy i sledstvie iz nikh (Russian Edition),Used
Delivery time: 8-12 business days (International)
Kniga posvyashchena resheniyam uravneniya Nav'e Stoksa. V chastnosti polucheno reshenie, opisyvayushchee uragan i tornado. Opisan mekhanizm vozniknoveniya uragana. Predlagaetsya algoritm, opisyvayushchiy ne predskazuemuyu traektoriyu tornado. Vychisleny sily, deystvuyushchie na dvigayushcheesya v neszhimaemoy zhidkosti telo, t.e. vozmozhno opisanie dozvukovogo dvizheniya v vozdukhe. Okazalos', chto pri opredelennoy forme tela i ego skorosti summa vsekh sil, vklyuchaya silu tyazhesti i soprotivlenie sredy, bez ucheta tyagi tela, ravna nulyu. Eto dostigaetsya za schet togo, chto pri opredelennoy forme tela pod"emnaya sila menyaet svoe napravlenie i stanovitsya tolkayushchey siloy. Pri etom ispol'zuetsya ponyatie kompleksnoy skorosti, kvadrat kotoroy mozhet imet' otritsatel'nuyu deystvitel'nuyu chast'. T.e. pri dvizhenii opredelennogo tela s opredelennoy skorost'yu, okruzhayushchaya sreda budet peredavat' telu energiyu, vospolnyaya energiyu, zatrachennuyu na preodolenie treniya. Issledovan vopros o khaoticheskom reshenii uravneniya Nav'e Stoksa. Pokazano, chto pri kratnykh polozheniyakh ravnovesiya sistema khaoticheski pereskakivaet ot odnogo polozheniya ravnovesiya k drugomu. Poluchena zavisimost' koeffitsienta soprotivleniya v krugovoy trube pri lyubom chisle Reynol'dsa.
By changing our most important processes and
products, we have already made a big leap forward. This ranges from the
increased use of more sustainable fibers to the use of more
environmentally friendly printing processes to the development of
efficient waste management in our value chain.
Shipping & Returns
Shipping
We ship your order within 2–3 business days for USA deliveries and 5–8 business days for international shipments. Once your package has been dispatched from our warehouse, you'll receive an email confirmation with a tracking number, allowing you to track the status of your delivery.
Returns
To facilitate a smooth return process, a Return Authorization (RA) Number is required for all returns. Returns without a valid RA number will be declined and may incur additional fees. You can request an RA number within 15 days of the original delivery date. For more details, please refer to our Return & Refund Policy page.
Shipping & Returns
Shipping
We ship your order within 2–3 business days for USA deliveries and 5–8 business days for international shipments. Once your package has been dispatched from our warehouse, you'll receive an email confirmation with a tracking number, allowing you to track the status of your delivery.
Returns
To facilitate a smooth return process, a Return Authorization (RA) Number is required for all returns. Returns without a valid RA number will be declined and may incur additional fees. You can request an RA number within 15 days of the original delivery date. For more details, please refer to our Return & Refund Policy page.
Warranty
We provide a 2-year limited warranty, from the date of purchase for all our products.
If you believe you have received a defective product, or are experiencing any problems with your product, please contact us.
This warranty strictly does not cover damages that arose from negligence, misuse, wear and tear, or not in accordance with product instructions (dropping the product, etc.).
Warranty
We provide a 2-year limited warranty, from the date of purchase for all our products.
If you believe you have received a defective product, or are experiencing any problems with your product, please contact us.
This warranty strictly does not cover damages that arose from negligence, misuse, wear and tear, or not in accordance with product instructions (dropping the product, etc.).
Secure Payment
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.
We accept payments with :
Visa, MasterCard, American Express, Paypal, Shopify Payments, Shop Pay and more.
Secure Payment
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.
We accept payments with :
Visa, MasterCard, American Express, Paypal, Shopify Payments, Shop Pay and more.