ダムを回し山手線を回せ あべりょう 歌詞意味和訳ローマ字フル歌詞解説

質量(m)な水が　重力(g)で高さ(h)から落ちる　水力発電
位置(U=mgh)と運動エネルギー(T=1/2mv2)を　キャッチボールし空間を伝播
太陽が熱した海水(H2O)　重力に逆らい蒸発し　雲
山のダムに雨が降り積った　落差が100mの位置エネルギー(h)
力学、電磁気、熱力従え　竜が滝を下る
(流体力学)
流体圧力(P)、密度(ρ一定)、流速(v)、　高さ(h)、重力加速度(g)、分解
再構築してエネルギー(T)保存
ベルヌーイの流体力学(P+1/2ρv2＋ρgh=一定)
毎秒　水の質量(m)が面を通過する質量流量(m’)を
位置(U=m’gh)と運動エネルギー(1/2m’v2)　ダルシーワイズバッハの管摩擦を
エネルギー損失(m’gΔh)に区分し
流体の見える化に成功(m’gh=1/2m’v2+m’gΔh)
Δhは下る管の摩擦　高さ(h)に変換した値
※摩擦係数f、配管の長さL(m)、配管の直径D(m)、
流速v(m/s)を用いてΔh=f×L/D×v2/2gと表せる高さ損失(Δh)
落差100m　10m/s2で重力加速
秒速20mな質量流量(m’)　より加速するなら
断面積絞れ！　質量保存　連続方程式(m’=ρAv)
質量流量(m’)、密度(ρ)一定で　管の直径(断面積A)を絞ると
直径5から4mへ縮み　断面積3分の2
秒速30m(v)とペルトン水車の半径2m(r)
線速度(v)=半径(r)×角速度(ω)に代入し　回転の角速度(ω)15(rad/s)と出て
水車を毎秒2回転する計算
※ラジアン(rad)は弧の長さ/円周を？/2πで表す角度の単位
水車の軸と一体なコイルが　磁力線を切り2回転
電磁誘導し　毎時10万kw発電　その威力
山手線を30周もぶん回し　登り竜が旋回
摩擦、圧力、流速、断面積　七変化して上昇
流体のエネルギー　質量の保存則と連続性を
3つの式でダイナミックに捕獲した　流体力学を抑えて吐き出す
ダムの放水がタービン回すと思いきや
水はダム脇の取水口の細い管を　そっと流れ下り
水車が人知れず回ると気づいた　夏の夕暮れ

damu no mizu no ichi enerugii tsuriau suichoku kouryoku na suimon hirake jiyuu rakka sase
undou enerugii toshite butsukeru taabin ni tsuketa koiru no denshi ga
jishaku SN kyoku no jiba kuguri kanjiru
denji yuudai no rorentsu ryoku de denshi wo ugokashi, katayori
den’i sa umare yurimodosu chikara na den’atsu (kouryuu) ga soudensen de oshihiki
densha no pantagurafu wo tsuuden shi mootaa no koiru no denshi ugokashi
denryuu ga jiba wo kugutte rorentsu ryoku de sharin wo mawashite
senro to masatsu shi undou wa netsu to nari taiki ni toke san’itsu
shitsuryou (m) na mizu ga juuryoku (g) de takasa (h) kara ochiru suiryoku hatsuden
ichi (U=mgh) to undou enerugii (T=1/2mv2) wo kyacchi booru shi kuukan wo denpa
taiyou ga netsushita kaimizu (H2O) juuryoku ni sakarai jouhatsu shi kumo
yama no damu ni ame ga furi tsumatta rakusa ga 100m no ichi enerugii (h)
rikigaku, denjiki, netsuryoku shitagae ryuu ga taki wo kudaru
(ryuutai rikigaku)
ryuutai atsuryoku (P), mitsudo (ρ ittei), ryuusoku (v), takasa (h), juuryoku kasokudo (g), bunkai
saikouchiku shite enerugii (T) hozon
berunui no ryuutai rikigaku (P+1/2ρv2＋ρgh=ittei)
maibyou mizu no shitsuryou (m) ga men wo tsuuka suru shitsuryou ryuuryou (m’) wo
ichi (U=m’gh) to undou enerugii (1/2m’v2) darushii waisubahha no kan masatsu wo
enerugii sonshitsu (m’gΔh) ni kubun shi
ryuutai no mieru ka ni seikou (m’gh=1/2m’v2+m’gΔh)
Δh wa kudaru kan no masatsu takasa (h) ni henkan shita chi
※masatsu keisuu f, haikan no nagasa L(m), haikan no chokkei D(m),
ryuusoku v(m/s) wo mochiite Δh=f×L/D×v2/2g to arawasu takasa sonshitsu (Δh)
rakusa 100m 10m/s2 de juuryoku kasoku
byousoku 20m na shitsuryou ryuuryou (m’) yori kasoku suru nara
danmen’eki shibore! shitsuryou hozon renzoku houteishiki (m’=ρAv)
shitsuryou ryuuryou (m’), mitsudo (ρ) ittei de kan no chokkei (danmen’eki A) wo shiboru to
chokkei 5 kara 4m e chidami danmen’eki sanbun no ni
byousoku 30m (v) to peruton suisha no hankei 2m (r)
sen sokudo (v)=hankei (r)×kaku sokudo (ω) ni nyuuryoku shi kaiten no kaku sokudo (ω) 15 (rad/s) to dete
suisha wo maibyou 2 kaiten suru keisan
※rajian (rad) wa ko no nagasa/en shuu wo ?/2π de arawasu kakudo no tan’i
suisha no jiku to ittai na koiru ga jiryokusen wo kiri 2 kaiten
denji yuudai shi maiki 10 man kw hatsuden sono iryoku
yamate sen wo 30 shuu mo bun mawashi nobori ryuu ga senkai
masatsu, atsuryoku, ryuusoku, danmen’eki shichi henge shite joushou
ryuutai no enerugii shitsuryou no hozon soku to renzoku sei wo
mittsu no shiki de dainamikku ni hokaku shita ryuutai rikigaku wo osaete hakidasu
damu no housui ga taabin mawasu to omoi kiya
mizu wa damu waki no tori mizu kuchi no hosoi kan wo sotto nagare kudari
suisha ga hitoshirezu mawaru to kidzuita natsu no yuugure

The dammed water’s positional energy balances the vertical support—
open the sluice, let it free-fall.

It crashes down as kinetic energy; electrons in the turbine’s coil
slip between the magnet’s N and S, feeling the field.

Lorentz force from electromagnetic induction nudges the electrons aside,
a voltage—alternating, a swaying restoring force—pushes and pulls along the transmission line.

It feeds the pantograph of a train, stirs the electrons in the motor’s coils;
current threads the magnetic field, Lorentz force spins the wheels,

they grind against the rails, motion melts into heat and dissolves into the air.
Mass m of water drops height h under gravity g—hydroelectric power.

Potential (U = mgh) and kinetic (T = ½mv²) play catch across the space.
Sun-warmed seawater (H₂O) defies gravity, evaporates, becomes cloud,

rains and pools behind a mountain dam—potential energy of 100 m head.
Obedient to mechanics, electromagnetism, thermodynamics, the dragon descends the cascade.

(Fluid mechanics)
Fluid pressure P, constant density ρ, flow speed v, height h, gravitational acceleration g—dissect,

reassemble, conserve the energy T.
Bernoulli’s fluidics: P + ½ρv² + ρgh = constant.

Every second, water mass m passes through a surface—mass flow m′.
Potential (U = m′gh) and kinetic (½m′v²), Darcy-Weisbach’s pipe friction

is tallied as energy loss (m′gΔh).
We succeed in making the fluid visible: m′gh = ½m′v² + m′gΔh.

Δh is the friction of the descending pipe, converted into an equivalent height.
With friction factor f, pipe length L (m), diameter D (m), velocity v (m/s),

Δh = f·L/D·v²/2g gives the height loss (Δh).
Head of 100 m, gravity 10 m/s².

Mass flow m′ at 20 m/s—if you want more speed,
narrow the cross-section! Mass is conserved—continuity equation: m′ = ρAv.

With m′ and ρ constant, shrinking the pipe’s diameter (cross-section A)
from 5 m to 4 m—area drops to two-thirds.

Velocity rises to 30 m/s; Pelton wheel radius 2 m (r).
Substitute into linear speed v = rω and the angular velocity ω emerges as 15 rad/s,

a calculation of two revolutions per second.
*Radians (rad) measure angle as arc length over circumference, ?/2π.

The coil fixed to the turbine’s shaft slices magnetic flux twice per turn,
electromagnetic induction yields 100 000 kW each hour—such power

could circle the Yamanote Line thirty times; the ascending dragon spirals.
Friction, pressure, flow speed, cross-section—sevenfold changes climb upward.

The fluid’s energy, the laws of mass conservation and continuity,
are captured dynamically in three equations; mastering fluid mechanics, I exhale.

I thought the dam’s release spun the turbine outright,
yet the water quietly slips through a slender pipe beside the dam,

and I realized the wheel turns unseen—summer twilight.